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1.
Lancet Infect Dis ; 24(6): 611-618, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38335976

ABSTRACT

BACKGROUND: In 2016, outbreaks of yellow fever in Angola and the Democratic Republic of the Congo led to a global vaccine shortage. A fractional dose of 17DD yellow fever vaccine (containing one-fifth [0·1 ml] of the standard dose) was used during a pre-emptive mass campaign in August, 2016, in Kinshasa, Democratic Republic of the Congo among children aged 2 years and older and non-pregnant adults (ie, those aged 18 years and older). 1 year following vaccination, 97% of participants were seropositive; however, the long-term durability of the immune response is unknown. We aimed to conduct a prospective cohort study and invited participants enrolled in the previous evaluation to return 5 years after vaccination to assess durability of the immune response. METHODS: Participants returned to one of six health facilities in Kinshasa in 2021, where study staff collected a brief medical history and blood specimen. We assessed neutralising antibody titres against yellow fever virus using a plaque reduction neutralisation test with a 50% cutoff (PRNT50). Participants with a PRNT50 titre of 10 or higher were considered seropositive. The primary outcome was the proportion of participants seropositive at 5 years. FINDINGS: Among the 764 participants enrolled, 566 (74%) completed the 5-year visit. 5 years after vaccination, 539 (95·2%, 95% CI 93·2-96·7) participants were seropositive, including 361 (94·3%, 91·5-96·2) of 383 who were seronegative and 178 (97·3%, 93·8-98·8) of 183 who were seropositive at baseline. Geometric mean titres (GMTs) differed significantly across age groups for those who were initially seronegative with the lowest GMT among those aged 2-5 years and highest among those aged 13 years and older. INTERPRETATION: A fractional dose of the 17DD yellow fever vaccine induced an immunologic response with detectable titres at 5 years among the majority of participants in the Democratic Republic of the Congo. These findings support the use of fractional-dose vaccination for outbreak prevention with the potential for sustained immunity. FUNDING: Gavi, the Vaccine Alliance through the CDC Foundation. TRANSLATION: For the French translation of the abstract see Supplementary Materials section.


Subject(s)
Antibodies, Viral , Disease Outbreaks , Yellow Fever Vaccine , Yellow Fever , Humans , Democratic Republic of the Congo/epidemiology , Yellow Fever/prevention & control , Yellow Fever/immunology , Yellow Fever/epidemiology , Prospective Studies , Yellow Fever Vaccine/immunology , Yellow Fever Vaccine/administration & dosage , Disease Outbreaks/prevention & control , Male , Female , Child , Child, Preschool , Adolescent , Adult , Antibodies, Viral/blood , Young Adult , Vaccination , Middle Aged , Antibodies, Neutralizing/blood , Yellow fever virus/immunology
2.
BMJ Med ; 3(1): e000726, 2024.
Article in English | MEDLINE | ID: mdl-38293682

ABSTRACT

Objective: To analyse progress in global vaccination against human papillomavirus (HPV) during the covid-19 pandemic, with a particular focus on equity. Design: Descriptive study of World Health Organization-Unicef vaccination coverage estimates. Setting: WHO-Unicef estimates of global, regional, and national HPV vaccination coverage, before (2010-19) and during (2020-21) the covid-19 pandemic. Participants: Girls aged 9-14 years who received a HPV vaccine globally before (12.3 million in 2019) and during (2020-21) the covid-19 pandemic (10.6 million in 2021). Main outcome measures: Mean programme and population adjusted coverage for first dose HPV vaccine (HPV1) by country, country income (World Bank income categories), sex, and WHO region, before (2010-19) and during (2020-21) the covid-19 pandemic, based on WHO-Unicef estimates of HPV vaccination coverage. Annual number of national HPV vaccine programme introduced since the first HPV vaccine licence was granted in 2006, based on data reported to WHO-Unicef. Number of girls vaccinated before (2019) versus during (2020-21) the covid-19 pandemic period. Results: Mean coverage of HPV vaccination programmes among girls decreased from 65% in 2010-19 to 50% in 2020-21 in low and middle income countries compared with an increase in high income countries from 61% to 69% for the same periods. Population adjusted HPV1 coverage was higher among girls in high income countries before and during the covid-19 pandemic than in girls in low and middle income countries. During the covid-19 pandemic, population adjusted HPV1 coverage among boys in high income countries was higher and remained higher than coverage among girls in low and middle income countries. Globally, 23 countries recorded a severe reduction in their HPV programme (≥50% reduction in coverage), and another 3.8 million girls globally did not receive a HPV vaccine in countries with existing HPV vaccination programmes in 2020-21 compared with 2019. A reduction was seen in the annual rate of new introductions of national HPV vaccine programmes during 2020-21, affecting countries in all income categories, followed by an increase in introductions during 2022. During the second half of 2023, several low and middle income countries with large birth cohorts and a high relative burden of cervical cancer have yet to introduce HPV vaccination. Conclusions: Although HPV vaccines have been available for more than 15 years, global HPV vaccination coverage is low. During the covid-19 pandemic period (2020-21 globally), worsening coverage, delayed introductions of national vaccine programmes, and an increase in missed girls globally (ie, girls who did not receive a HPV vaccine compared with the previous year in countries with an existing HPV vaccination programme) that disproportionately affected girls in low and middle income countries were found. Urgent and innovative recovery efforts are needed to accelerate national introduction of HPV vaccination programmes and achieve high coverage of HPV vaccination worldwide.

3.
MMWR Morb Mortal Wkly Rep ; 72(27): 746-750, 2023 Jul 07.
Article in English | MEDLINE | ID: mdl-37410663

ABSTRACT

This report describes the status of introductions globally for eight World Health Organization (WHO)-recommended new and underutilized vaccines, comprising 10 individual vaccine antigens. By 2021, among 194 countries worldwide, 33 (17%) provided all of these 10 WHO-recommended antigens as part of their routine immunization schedules; only one low-income country had introduced all of these recommended vaccines. Universal hepatitis B birth dose; human papillomavirus vaccine; rotavirus vaccine; and diphtheria, tetanus, and pertussis-containing vaccine first booster dose have been introduced by 57%, 59%, 60%, and 72% of all countries worldwide, respectively. Pneumococcal conjugate vaccine, rubella-containing vaccine, measles-containing vaccine second dose, and Haemophilus influenzae type b vaccine have been introduced by 78%, 89%, 94%, and 99% of all countries, respectively. The annual rate of new vaccine introductions declined precipitously when the COVID-19 pandemic started, from 48 in 2019 to 15 in 2020 before rising to 26 in 2021. Increased efforts to accelerate new and underutilized vaccine introductions are urgently needed to improve universal equitable access to all recommended vaccines to achieve the global Immunization Agenda 2021-2030 (IA2030) targets.


Subject(s)
COVID-19 , Haemophilus Vaccines , Humans , Infant , Diphtheria-Tetanus-Pertussis Vaccine , Pandemics , COVID-19/epidemiology , COVID-19/prevention & control , Vaccination , Measles Vaccine , Rubella Vaccine , Immunization Schedule , Poliovirus Vaccine, Inactivated , Hepatitis B Vaccines , Vaccines, Combined
4.
Int J Epidemiol ; 52(4): 1150-1162, 2023 08.
Article in English | MEDLINE | ID: mdl-36762894

ABSTRACT

BACKGROUND: Despite providing tetanus-toxoid-containing vaccine (TTCV) to infants and reproductive-age women, Uganda reports one of the highest incidences of non-neonatal tetanus (non-NT). Prompted by unusual epidemiologic trends among reported non-NT cases, we conducted a retrospective record review to see whether these data reflected true disease burden. METHODS: We analysed nationally reported non-NT cases during 2012-2017. We visited 26 facilities (14 hospitals, 12 health centres) reporting high numbers of non-NT cases (n = 20) or zero cases (n = 6). We identified non-NT cases in facility registers during 1 January 2016-30 June 2017; the identified case records were abstracted. RESULTS: During 2012-2017, a total of 24 518 non-NT cases were reported and 74% were ≥5 years old. The average annual incidence was 3.43 per 100 000 population based on inpatient admissions. Among 482 non-NT inpatient cases reported during 1 January 2016-30 June 2017 from hospitals visited, 342 (71%) were identified in facility registers, despite missing register data (21%). Males comprised 283 (83%) of identified cases and 60% were ≥15 years old. Of 145 cases with detailed records, 134 (92%) were clinically confirmed tetanus; among these, the case-fatality ratio (CFR) was 54%. Fourteen cases were identified at two hospitals reporting zero cases. Among >4000 outpatient cases reported from health centres visited, only 3 cases were identified; the remainder were data errors. CONCLUSIONS: A substantial number of non-NT cases and deaths occur in Uganda. The high CFR and high non-NT burden among men and older children indicate the need for TTCV booster doses across the life course to all individuals as well as improved coverage with the TTCV primary series. The observed data errors indicate the need for data quality improvement activities.


Subject(s)
Tetanus , Humans , Uganda/epidemiology , Tetanus/epidemiology , Cost of Illness , Incidence , Tetanus Toxoid , Male , Female , Infant , Child, Preschool , Child , Adolescent , Young Adult , Adult , Middle Aged , Aged , Aged, 80 and over , Risk Factors , Vaccination/statistics & numerical data
5.
Emot Space Soc ; 42: 100861, 2022 Feb.
Article in English | MEDLINE | ID: mdl-36570600

ABSTRACT

The shift of middle-class jobs to home settings, which occurred as a result of COVID-19 health measures that also closed schools and daycares, introduced dynamic changes to everyday life. We investigate these changes drawing on data from our study in which participants in Nova Scotia, Canada, who were working at home due to the pandemic, wrote journal entries in response to weekly prompts. Participants not only documented changes to their routines and challenges of managing work and parenting simultaneously and in the same physical space, but also reflected on their conflicted emotions about life during the pandemic and their vision for life as things return to "normal." Their narratives prompt us to consider these experiences and emotions in relation to Arlie Hochschild's scholarship on feeling rules, emotion work, and gender and work more broadly. We find that from our participants' struggle to meet existing expectations on activities and emotion while simultaneously managing new sets of protocols and feeling rules what emerges is a resistance to norms of busyness, productivity, and exhaustion.

6.
Data Brief ; 45: 108582, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36426094

ABSTRACT

This dataset contains 82 unique refractory alloys experimentally synthesized via arc melting and subject to screening tests for hardness and room temperature ductility. Most compositions fall under the definition of high entropy or complex concentrated alloys, but simpler ternary compositions are also included. Hardness was collected via a standard indentation technique while compressive ductility was quantified using a custom high throughput experimental approach yielding a ductility ranking from 0 to 5. The unique ductility screening test was developed to provide directional information for alloy development at a low cost and rapid pace using conventional test equipment. Predicted solidus temperature for all alloys is also included based on thermodynamic modelling. The dataset should be of interest to those exploring the emerging class of refractory high entropy alloys and particularly useful where optimization is sought balancing strength, ductility, and high melting temperature.

7.
Int J Qual Methods ; 21: 16094069221093138, 2022 Apr.
Article in English | MEDLINE | ID: mdl-35464299

ABSTRACT

Solicited journal entries are a qualitative research method with a fairly strong tradition in sociological research and particularly in qualitative health research. However, the practices and strengths associated with solicited journal entries have not been explored as frequently or comprehensively as more conventional qualitative research methods, such as interviews. During the COVID-19 pandemic we carried out two online studies employing solicited written journal entries and photos. One study focused on pregnancy and health care experiences during the pandemic and the other on everyday life while working from home due to public health restrictions. Here, we discuss solicited online journal entries as a qualitative method and reflect on the strengths and challenges we encountered, including those related to using the online survey tool LimeSurvey for a qualitative diary-based study. The richness of data and the ability to solicit participants' contemporaneous reflections over the course of a set length of time, the ability to reach people across time zones and in multiple places, and the ability to adapt prompts in a quickly changing research context are major strengths of online journaling. The level of commitment required by participants, the potential for attrition, the need for literacy and technology access, and the large amount of data from each participant are potential limitations for researchers to consider.

8.
Vaccine ; 40 Suppl 1: A10-A16, 2022 03 31.
Article in English | MEDLINE | ID: mdl-34593269

ABSTRACT

Following successful school-based demonstration programs in 2014-2016, the human papillomavirus (HPV) vaccine was introduced nationwide in Senegal for 9-year-old girls in 2018, using a routine service delivery strategy at health facilities, schools, and other outreach sites. We reviewed the HPV vaccine introduction in Senegal to understand the successes, challenges, and lessons learned. Focusing on three key domains (program decision-making, planning, and implementation), we conducted ten semi-structured interviews during 2019-2020 with purposively selected national-level stakeholders (government, expert advisory committee, key technical and implementation partners) and comprehensive desk reviews of country documents on HPV vaccine introduction. Due to the global HPV vaccine shortage, the introduction was limited to a single-age cohort; therefore, 9-year-old girls were chosen. This strategy enabled Senegal to potentially reach more girls in primary education because school enrolment rates decline thereafter. Vaccination through routine delivery platforms (i.e., health facility, school-based, and community outreach) was perceived to be more cost-effective than a campaign approach. High-level political commitment and collaborations between immunization and education partners were frequently cited by key informants as reasons for a successful vaccine introduction. All key informants reported that the health care worker (HCW) strike, rumors, and vaccine hesitancy negatively impacted the introduction. Other challenges noted included insufficient information on attitudes towards HPV vaccination among HCWs, teachers, and community members. Senegal successfully introduced HPV vaccine into the national immunization schedule, using a routine delivery strategy. Strong leadership and a multi-sectoral approach likely contributed to this success. To build sustainability of the HPV vaccination program in the future, it is important to improve the understanding and engagement among all stakeholders, including HCWs and community members, and to strengthen and innovate communication and crisis management strategies. To better understand the efficiency and effectiveness of Senegal's vaccination strategy, additional assessments of the operational costs and coverage achieved are needed.


Subject(s)
Papillomavirus Infections , Papillomavirus Vaccines , Uterine Cervical Neoplasms , Child , Female , Humans , Immunization Programs , Papillomavirus Infections/prevention & control , Senegal , Uterine Cervical Neoplasms/prevention & control , Vaccination
9.
Vaccine ; 40 Suppl 1: A77-A84, 2022 03 31.
Article in English | MEDLINE | ID: mdl-34955325

ABSTRACT

INTRODUCTION: In 2018, Senegal introduced human papillomavirus (HPV) vaccine into its routine immunization program for all nine-year-old girls nationwide. We evaluated the costs of Senegal's introduction of HPV vaccine via this delivery approach. METHODS: We conducted a retrospective, incremental, ingredients-based cost evaluation from the provider perspective. The study timeframe included Senegal's first planning meeting in 2018 through data collection in early 2020. We collected costs from all involved units at the national and regional levels. A multi-stage cluster sampling approach was used to obtain a nationally representative sample of districts and health facilities. Weights were applied to costs from sampled units to estimate costs across all units. The cost evaluation was based on four dimensions: program activity, resource input, payer, and administrative level. Total costs were divided by the number of HPV doses administered to determine cost per dose and per dimension. RESULTS: Excluding vaccine program activity costs, the total financial and economic delivery costs of Senegal's HPV vaccination program were US$ 1,152,351 and US$ 2,838,466, respectively (US$ 3.07 and US$ 7.56 per dose, respectively). A total of 375,608 HPV vaccine doses were administered during the cost evaluation. Training and per diem represented the largest shares of financial costs. Service delivery and personnel time accounted for the largest shares of economic costs. By administrative level, district and health facility levels had the largest shares of financial and economic costs, respectively. Senegal's Ministry of Health accounted for the largest share of financial and economic costs. Including vaccine program activity costs (US$ 4.68/per dose), the total financial cost was US$ 2,911,343 (US$ 7.75 per dose). CONCLUSION: This cost evaluation can support Senegal's future vaccine introductions and inform other countries planning to introduce HPV vaccine nationwide. These findings support previous costing studies which anticipated potential economies of scale during the transition from HPV vaccine pilot demonstration projects to national introduction.


Subject(s)
Papillomavirus Infections , Papillomavirus Vaccines , Child , Cost-Benefit Analysis , Costs and Cost Analysis , Female , Humans , Immunization Programs , Papillomavirus Infections/prevention & control , Retrospective Studies , Senegal , Vaccination/methods
10.
PLOS Glob Public Health ; 2(4): e0000130, 2022.
Article in English | MEDLINE | ID: mdl-36962130

ABSTRACT

In Senegal, cervical cancer is the most common cancer among women and the leading cause of morbidity and mortality from all cancers. In 2018, Senegal launched a national human papillomavirus (HPV) vaccination program with Gavi, the Vaccine Alliance (Gavi), support. HPV vaccination was incorporated into the national immunization program as a two-dose schedule, with a 6-12-month interval, to nine-year-old girls via routine immunization (RI) services at health facilities, schools and community outreach services throughout the year. During February to March 2020, we conducted interviews to assess the awareness, feasibility, and acceptability of the HPV vaccination program with a cross-sectional convenience sample of healthcare workers (HCWs), school personnel, community healthcare workers (cHCWs), parents, and community leaders from 77 rural and urban health facility catchment areas. Participants were asked questions on HPV vaccine knowledge, delivery, training, and community acceptability of the program. We conducted a descriptive analysis stratified by respondent type. Data were collected from 465 individuals: 77 HCW, 78 school personnel, 78 cHCWs, 152 parents, and community leaders. The majority of HCWs (83.1%) and cHCWs (74.4%) and school personnel (57.7%) attended a training on HPV vaccine before program launch. Of all respondents, most (52.5-87.2%) were able to correctly identify the target population. The majority of respondents (60.2-77.5%) felt that the vaccine was very accepted or accepted in the community. Senegal's HPV vaccine introduction program, among the first national programs in the African region, was accepted by community stakeholders. Training rates were high, and most respondents identified the target population correctly. However, continued technical support is needed for the integration of HPV vaccination as a RI activity for this non-traditional age group. The Senegal experience can be a useful resource for countries planning to introduce the HPV vaccine.

11.
J Interpers Violence ; 36(17-18): 8741-8767, 2021 09.
Article in English | MEDLINE | ID: mdl-31161854

ABSTRACT

The purpose of this study was to examine associations between three subtypes of childhood maltreatment (physical abuse, sexual abuse, and exposure to intimate partner violence) and two forms of adult police contact (criminality, victimization) using nationally representative Canadian data. Presence of a mental health disorder was also explored as a potential mediating variable in these associations. The weighted sample included 23,846 adult participants from the 2012 Canadian Community Health Survey-Mental Health. Logistic and multinomial regression analyses examined associations among individual and multiple exposures to subtypes of childhood maltreatment with police contact. The Sobel test was used to assess the mediating effect of mental health disorders. Adjusting for sociodemographic variables, results indicated that all maltreatment subtypes were significantly associated with increased odds of both forms of police contact (adjusted odds ratios ranged from 2.06 to 2.95). Presence of a mental health disorder was a partial mediator in the associations between child maltreatment and both forms of adult police contact (adjusted odds ratios ranged from 1.52 to 2.32). In addition, a dose-response relationship was observed for victimization; as the number of subtypes of maltreatment increased, there was an incremental increase in risk of victimization. Future efforts are needed to prioritize child maltreatment prevention, trauma-informed approaches, mental health awareness, and training in law enforcement.


Subject(s)
Child Abuse , Intimate Partner Violence , Adult , Canada/epidemiology , Child , Humans , Mental Health , Police
12.
N Engl J Med ; 381(5): 444-454, 2019 08 01.
Article in English | MEDLINE | ID: mdl-29443626

ABSTRACT

BACKGROUND: In 2016, the response to a yellow fever outbreak in Angola and the Democratic Republic of Congo led to a global shortage of yellow fever vaccine. As a result, a fractional dose of the 17DD yellow fever vaccine (containing one fifth [0.1 ml] of the standard dose) was offered to 7.6 million children 2 years of age or older and nonpregnant adults in a preemptive campaign in Kinshasa. The goal of this study was to assess the immune response to the fractional dose in a large-scale campaign. METHODS: We recruited participants in four age strata at six vaccination sites. We assessed neutralizing antibody titers against yellow fever virus in blood samples obtained before vaccination and at 1 month and 1 year after vaccination, using a plaque reduction neutralization test with a 50% cutoff (PRNT50). Participants with a PRNT50 titer of 10 or higher were considered to be seropositive. Those with a baseline titer of less than 10 who became seropositive at follow-up were classified as having undergone seroconversion. Participants who were seropositive at baseline and who had an increase in the titer by a factor of 4 or more at follow-up were classified as having an immune response. RESULTS: Among 716 participants who completed the 1-month follow-up, 705 (98%; 95% confidence interval [CI], 97 to 99) were seropositive after vaccination. Among 493 participants who were seronegative at baseline, 482 (98%; 95% CI, 96 to 99) underwent seroconversion. Among 223 participants who were seropositive at baseline, 148 (66%; 95% CI, 60 to 72) had an immune response. Lower baseline titers were associated with a higher probability of having an immune response (P<0.001). Among 684 participants who completed the 1-year follow-up, 666 (97%; 95% CI, 96 to 98) were seropositive for yellow fever antibody. The distribution of titers among the participants who were seronegative for yellow fever antibody at baseline varied significantly among age groups at 1 month and at 1 year (P<0.001 for both comparisons). CONCLUSIONS: A fractional dose of the 17DD yellow fever vaccine was effective at inducing seroconversion in participants who were seronegative at baseline. Titers remained above the threshold for seropositivity at 1 year after vaccination in nearly all participants who were seropositive at 1 month after vaccination. These findings support the use of fractional-dose vaccination for outbreak control. (Funded by the U.S. Agency for International Development and the Centers for Disease Control and Prevention.).


Subject(s)
Yellow Fever Vaccine/immunology , Yellow Fever/prevention & control , Yellow fever virus/immunology , Adolescent , Adult , Antibodies, Neutralizing/blood , Antibodies, Viral/blood , Child , Child, Preschool , Democratic Republic of the Congo/epidemiology , Disease Outbreaks , Female , Follow-Up Studies , Humans , Male , Middle Aged , Seroconversion , Yellow Fever/epidemiology , Yellow Fever/immunology , Yellow Fever Vaccine/administration & dosage , Yellow fever virus/isolation & purification , Young Adult
13.
Can J Public Health ; 109(4): 561-572, 2018 08.
Article in English | MEDLINE | ID: mdl-29981095

ABSTRACT

OBJECTIVES: This study investigated associations between three types of child maltreatment (exposure to intimate partner violence, sexual, and physical abuse) and multimorbidity (chronic physical conditions, pain conditions, and mental disorders) in adults. METHODS: Multinomial logistic regression was used to analyze weighted data from the 2012 Canadian Community Health Survey (CCHS - MH 2012), a representative population sample (N = 23,846) of respondents ages 18+. RESULTS: All three subtypes of child maltreatment independently predicted increased odds of experiencing multimorbidity as an adult, while adjusting for covariates (adjusted odds ratios ranged from 1.34 (95% CI = 1.00, 1.80) to 4.87 (95% CI = 2.75, 8.63)). A dose-response relationship between the number of child maltreatment subtypes and risk for multimorbidity was also observed (adjusted odds ratios ranged from 1.38 (95% CI = 1.11, 1.73) to 10.96 (95% CI = 6.12, 19.64)). CONCLUSION: The current results highlight the importance of considering a range of childhood adversities and suggest that public health approaches that aim to decrease the prevalence and severity of child maltreatment have the potential to ameliorate adult multimorbidities. Future research is encouraged to investigate these issues using longitudinal population-level data.


Subject(s)
Adult Survivors of Child Abuse/statistics & numerical data , Multimorbidity , Adult , Aged , Canada/epidemiology , Female , Health Surveys , Humans , Male , Middle Aged , Prevalence , Risk Factors , Young Adult
14.
J Occup Environ Med ; 59(5): 486-496, 2017 05.
Article in English | MEDLINE | ID: mdl-28486345

ABSTRACT

OBJECTIVE: To profile chronic health conditions of an injured worker sample before and after workplace injury and compare injured workers to a matched community sample. METHODS: Logistic regression analyses compared risk of certain chronic health conditions for permanently disabled injured workers in the pre- and post-injury periods to comparator subsamples from the Canadian Community Health Surveys 2003 and 2009/2010. RESULTS: There were notable health differences between the injured worker and comparator samples for the post-injury period. Injured men and women were more likely to report arthritis, hypertension, ulcers, depression, and back problems than the comparator sample. Injured women were also more likely to report migraine headaches and asthma. CONCLUSIONS: The observed differences suggest that permanently impaired injured workers experience more rapidly accelerated health declines than other aging workers, and this outcome is gendered.


Subject(s)
Chronic Disease/epidemiology , Disabled Persons/statistics & numerical data , Occupational Injuries/epidemiology , Adult , Arthritis/epidemiology , Asthma/epidemiology , Back Pain/epidemiology , Canada/epidemiology , Case-Control Studies , Depression/epidemiology , Female , Health Surveys , Humans , Hypertension/epidemiology , Male , Middle Aged , Migraine Disorders/epidemiology , Peptic Ulcer/epidemiology , Prevalence , Risk Factors
15.
Pan Afr Med J ; 27(Suppl 3): 5, 2017.
Article in English | MEDLINE | ID: mdl-29296140

ABSTRACT

INTRODUCTION: In 2010, the Global Vaccine Action Plan called on all countries to reach and sustain 90% national coverage and 80% coverage in all districts for the third dose of diphtheria-tetanus-pertussis vaccine (DTP3) by 2015 and for all vaccines in national immunization schedules by 2020. The aims of this study are to analyze recent trends in national vaccination coverage in the World Health Organization African Region andto assess how these trends differ by country income category. METHODS: We compared national vaccination coverage estimates for DTP3 and the first dose of measles-containing vaccine (MCV) obtained from the World Health Organization (WHO)/United Nations Children's Fund (UNICEF) joint estimates of national immunization coverage for all African Region countries. Using United Nations (UN) population estimates of surviving infants and country income category for the corresponding year, we calculated population-weighted average vaccination coverage by country income category (i.e., low, lower middle, and upper middle-income) for the years 2000, 2005, 2010 and 2015. RESULTS: DTP3 coverage in the African Region increased from 52% in 2000 to 76% in 2015,and MCV1 coverage increased from 53% to 74% during the same period, but with considerable differences among countries. Thirty-six African Region countries were low income in 2000 with an average DTP3 coverage of 50% while 26 were low income in 2015 with an average coverage of 80%. Five countries were lower middle-income in 2000 with an average DTP3 coverage of 84% while 12 were lower middle-income in 2015 with an average coverage of 69%. Five countries were upper middle-income in 2000 with an average DTP3 coverage of 73% and eight were upper middle-income in 2015 with an average coverage of 76%. CONCLUSION: Disparities in vaccination coverage by country persist in the African Region, with countries that were lower middle-income having the lowest coverage on average in 2015. Monitoring and addressing these disparities is essential for meeting global immunization targets.


Subject(s)
Diphtheria-Tetanus-Pertussis Vaccine/administration & dosage , Immunization Schedule , Measles Vaccine/administration & dosage , Vaccination/statistics & numerical data , Africa , Developing Countries , Global Health , Humans , Immunization Programs , Income , Infant , Vaccination Coverage/statistics & numerical data , World Health Organization
16.
Article in English | AIM (Africa) | ID: biblio-1268492

ABSTRACT

Introduction: in 2010, the Global Vaccine Action Plan called on all countries to reach and sustain 90% national coverage and 80% coverage in all districts for the third dose of diphtheria-tetanus-pertussis vaccine (DTP3) by 2015 and for all vaccines in national immunization schedules by 2020. The aims of this study are to analyze recent trends in national vaccination coverage in the World Health Organization African Region and to assess how these trends differ by country income category.Methods: we compared national vaccination coverage estimates for DTP3 and the first dose of measles-containing vaccine (MCV) obtained from the World Health Organization (WHO)/United Nations Children's Fund (UNICEF) joint estimates of national immunization coverage for all African Region countries. Using United Nations (UN) population estimates of surviving infants and country income category for the corresponding year, we calculated population-weighted average vaccination coverage by country income category (i.e., low, lower middle, and upper middle-income) for the years 2000, 2005, 2010 and 2015.Results: DTP3 coverage in the African Region increased from 52% in 2000 to 76% in 2015,and MCV1 coverage increased from 53% to 74% during the same period, but with considerable differences among countries. Thirty-six African Region countries were low income in 2000 with an average DTP3 coverage of 50% while 26 were low income in 2015 with an average coverage of 80%. Five countries were lower middle-income in 2000 with an average DTP3 coverage of 84% while 12 were lower middle-income in 2015 with an average coverage of 69%. Five countries were upper middle-income in 2000 with an average DTP3 coverage of 73% and eight were upper middle-income in 2015 with an average coverage of 76%.Conclusion: disparities in vaccination coverage by country persist in the African Region, with countries that were lower middle-income having the lowest coverage on average in 2015. Monitoring and addressing these disparities is essential for meeting global immunization targets


Subject(s)
Africa , Diphtheria-Tetanus-Pertussis Vaccine , Immunization , Vaccination , World Health Organization
17.
MMWR Morb Mortal Wkly Rep ; 65(45): 1270-1273, 2016 Nov 18.
Article in English | MEDLINE | ID: mdl-27855146

ABSTRACT

In 1974, the World Health Organization (WHO) established the Expanded Program on Immunization* to provide protection against six vaccine-preventable diseases through routine infant immunization (1). Based on 2015 WHO and United Nations Children's Fund (UNICEF) estimates, global coverage with the third dose of diphtheria-tetanus-pertussis vaccine (DTP3), the first dose of measles-containing vaccine (MCV1) and the third dose of polio vaccine (Pol3) has remained stable (84%-86%) since 2010. From 2014 to 2015, estimated global coverage with the second MCV dose (MCV2) increased from 39% to 43% by the end of the second year of life and from 58% to 61% when older age groups were included. Global coverage was higher in 2015 than 2010 for newer or underused vaccines, including rotavirus vaccine, pneumococcal conjugate vaccine (PCV), rubella vaccine, Haemophilus influenzae type b (Hib) vaccine, and 3 doses of hepatitis B (HepB3) vaccine. Coverage estimates varied widely by WHO Region, country, and district; in addition, for the vaccines evaluated (MCV, DTP3, Pol3, HepB3, Hib3), wide disparities were found in coverage by country income classification. Improvements in equity of access are necessary to reach and sustain higher coverage and increase protection from vaccine-preventable diseases for all persons.


Subject(s)
Global Health , Immunization Programs , Vaccination/statistics & numerical data , Vaccines/administration & dosage , Child, Preschool , Diphtheria-Tetanus-Pertussis Vaccine/administration & dosage , Goals , Humans , Immunization Schedule , Infant , World Health Organization
18.
Disabil Health J ; 8(2): 173-81, 2015 Apr.
Article in English | MEDLINE | ID: mdl-25458976

ABSTRACT

BACKGROUND: The rate of unmet health care needs is quite high for the general population in Canada; however, the rate is even higher for the subset of people with disabilities. To date, there is a gap in the research utilizing longitudinal data to measure the unmet health care needs of Canadians. OBJECTIVE/HYPOTHESIS: The purpose of this research is to compare the rate of unmet health care needs of people with disabilities to people without disabilities over 15 years. METHODS: Longitudinal data from waves 1 to 8 (1994/95 to 2008/09) of the National Population Health Survey in Canada (NPHS) were analyzed using a growth curve modeling approach. RESULTS: Respondents with disabilities have two to three times the rate of unmet health care needs compared to respondents without disabilities. Unmet health care needs increase over time, and at a faster rate for all disability types except work-related disability. Personal reasons for unmet health care needs decrease over time and there is no significant difference between respondents with disabilities and respondents without disabilities. The opposite was found for structural reasons, which increase over time, and, people with disabilities have higher rates of structural-based unmet health care needs (45% higher) at baseline. CONCLUSIONS: The incidence of disability in the population increases over time while at the same time the rate of unmet health care needs are higher for people with disabilities. The combination of these factors suggests that, in the absence of intervention, Canadians can expect more unmet health care needs in the future.


Subject(s)
Disabled Persons , Health Services Accessibility , Health Services Needs and Demand , Healthcare Disparities , Adult , Canada , Female , Health Surveys , Humans , Male , Middle Aged
19.
Disabil Rehabil ; 36(1): 23-31, 2014.
Article in English | MEDLINE | ID: mdl-23721497

ABSTRACT

PURPOSE: To examine the construct validity and inter-rater reliability of the Neurological Impairment Scale (NIS) and compare ratings by medical and multidisciplinary teams in a mixed neurorehabilitation sample. To assess its concurrent and predictive validity as a predictor of outcome and functional gains during inpatient rehabilitation. METHODS: The NIS was rated in a consecutive cohort of patients (n = 428) recruited from nine specialist neurorehabilitation units in London. Dimensionality and internal consistency were explored through principal components analysis with Varimax rotation. Inter-rater reliability and the relationship between NIS and functional outcome (UK Functional Assessment Measure (FIM + FAM)) were analysed in a sub-sample (n = 94) from one centre. RESULTS: Factor analysis identified two principal domains ("Physical" and "Cognitive") together accounting for 35% of the variance: their Cronbach's alpha values were 0.76 and 0.67, respectively. Inter-rater reliability was excellent for overall scores between doctors (ICC = 0.95 (95% CI = 0.91-0.97)) and acceptable between the medical and multidisciplinary team (ICC = 0.92 (95% CI = 0.88-0.95)). Change in NIS-physical score predicted 29% of the variance in functional gain (FIM + FAM change). CONCLUSION: These findings provide the first formal evidence for the validity and reliability of the NIS as a measure of neurological impairment for use in general neuro-rehabilitation settings. Its further application and exploration are now warranted. IMPLICATIONS FOR REHABILITATION: The extent of neurological recovery occurring during rehabilitation can make an important contribution to functional gains. In order to interpret measurement of functional outcome, we need to be able to identify changes at the level of impairment. Many of the available tools to measure severity of impairment are condition specific. The Neurological Impairment Scale (NIS) was developed for use across a broad range of disabling conditions alongside the UK FIM+FAM. This first formal examination of its psychometric properties provides evidence for its scalability, reliability and validity. The NIS has potential to provide useful information for case-mix adjustment and as a predictor of functional gain in general neurorehabilitation settings.


Subject(s)
Disability Evaluation , Nervous System Diseases/rehabilitation , Outcome Assessment, Health Care/methods , Psychometrics/methods , Activities of Daily Living , Adult , Aged , Cohort Studies , Factor Analysis, Statistical , Female , Humans , Inpatients , Male , Middle Aged , Nervous System Diseases/psychology , Predictive Value of Tests , Recovery of Function/physiology , Reproducibility of Results , Severity of Illness Index
20.
J Clin Oncol ; 29(8): 1022-8, 2011 Mar 10.
Article in English | MEDLINE | ID: mdl-21300923

ABSTRACT

PURPOSE: A phase III trial (Cancer and Leukemia Group B CALGB-49907) was conducted to test whether older patients with early-stage breast cancer would have equivalent relapse-free and overall survival with capecitabine compared with standard chemotherapy. The quality of life (QoL) substudy tested whether capecitabine treatment would be associated with a better QoL than standard chemotherapy. PATIENTS AND METHODS: QoL was assessed in 350 patients randomly assigned to either standard chemotherapy (cyclophosphamide, methotrexate, and fluorouracil [CMF] or doxorubicin and cyclophosphamide [AC]; n = 182) or capecitabine (n = 168). Patients were interviewed by telephone before treatment (baseline), midtreatment, within 1 month post-treatment, and at 12, 18, and 24 months postbaseline by using questionnaires from the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire C30 (EORTC QLQ-C30), a breast systemic adverse effects scale (EORTC BR23), and the Hospital Anxiety and Depression Scale (HADS). RESULTS: Compared with patients who were treated with standard chemotherapy, patients who were treated with capecitabine had significantly better QoL, role function, and social function, fewer systemic adverse effects, less psychological distress, and less fatigue during and at the completion of treatment (P ≤ .005). Capecitabine treatment was associated with less nausea, vomiting, and constipation and with better appetite than standard treatment (P ≤ .004), but worse hand-foot syndrome and diarrhea (P < .005). These differences all resolved by 12 months. CONCLUSION: Standard chemotherapy was superior to capecitabine in improving relapse-free and overall survival for older women with early-stage breast cancer. Although capecitabine was associated with better QoL during treatment, QoL was similar for both groups at 1 year. The brief period of poorer QoL with standard treatment is a modest price to pay for a chance at improved survival.


Subject(s)
Antimetabolites, Antineoplastic/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Breast Neoplasms/drug therapy , Deoxycytidine/analogs & derivatives , Fluorouracil/analogs & derivatives , Quality of Life , Age Factors , Aged , Antimetabolites, Antineoplastic/adverse effects , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Breast Neoplasms/mortality , Breast Neoplasms/pathology , Breast Neoplasms/psychology , Breast Neoplasms/surgery , Capecitabine , Chemotherapy, Adjuvant , Cyclophosphamide/administration & dosage , Cyclophosphamide/adverse effects , Deoxycytidine/administration & dosage , Deoxycytidine/adverse effects , Disease-Free Survival , Doxorubicin/administration & dosage , Doxorubicin/adverse effects , Female , Fluorouracil/administration & dosage , Fluorouracil/adverse effects , Humans , Methotrexate/administration & dosage , Methotrexate/adverse effects , Neoplasm Staging , Risk Assessment , Risk Factors , Surveys and Questionnaires , Survival Analysis , Time Factors , Treatment Outcome , United States
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