RESUMEN
BACKGROUND: Urogenital cancers are common, accounting for approximately 20% of cancer incidence globally. Cancers belonging to the same organ system often present with similar symptoms, making initial management challenging. In this study, 511 cases of cancer were recorded after the date of consultation among 61,802 randomly selected patients presenting in primary care in six European countries: a subgroup analysis of urogenital cancers was carried out in order to study variation in symptom presentation. METHODS: Initial data capture was by completion of standardised forms containing closed questions about symptoms recorded during the consultation. The general practitioner (GP) provided follow-up data after diagnosis, based on medical record data made after the consultation. GPs also provided free text comments about the diagnostic procedure for individual patients. RESULTS: The most common symptoms were mainly associated with one or two specific types of cancer: 'Macroscopic haematuria' with bladder or renal cancer (combined sensitivity 28.3%), 'Increased urinary frequency' with bladder (sensitivity 13.3%) or prostatic (sensitivity 32.1%) cancer, or to uterine body (sensitivity 14.3%) cancer, 'Unexpected genital bleeding' with uterine cancer (cervix, sensitivity 20.0%, uterine body, sensitivity 71.4%). 'Distended abdomen, bloating' had sensitivity 62.5% (based on eight cases of ovarian cancer). In ovarian cancer, increased abdominal circumference and a palpable tumour also were important diagnostic elements. Specificity for 'Macroscopic haematuria' was 99.8% (99.7-99.8). PPV > 3% was noted for 'Macroscopic haematuria' and bladder or renal cancer combined, for bladder cancer in male patients. In males aged 55-74, PPV = 7.1% for 'Macroscopic haematuria' and bladder cancer. Abdominal pain was an infrequent symptom in urogenital cancers. CONCLUSIONS: Most types of urogenital cancer present with rather specific symptoms. If the GP considers ovarian cancer, increased abdominal circumference should be actively determined. Several cases were clarified through the GP's clinical examination, or laboratory investigations.
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Carcinoma de Células Renales , Neoplasias Renales , Neoplasias Ováricas , Neoplasias de la Vejiga Urinaria , Femenino , Humanos , Masculino , Hematuria/diagnóstico , Hematuria/epidemiología , Hematuria/etiología , Neoplasias de la Vejiga Urinaria/complicaciones , Neoplasias de la Vejiga Urinaria/diagnóstico , Neoplasias Renales/complicaciones , Neoplasias Renales/diagnóstico , Carcinoma de Células Renales/complicaciones , Neoplasias Ováricas/complicaciones , Neoplasias Ováricas/diagnóstico , Neoplasias Ováricas/epidemiología , Atención Primaria de SaludRESUMEN
OBJECTIVE: To examine trends in end-of-life communication with people with cancer in general practice. METHODS: Mortality follow-back survey among general practitioners (GPs) in representative epidemiological surveillance networks in Belgium (BE), the Netherlands (NL) and Spain (ES) in 2009-2010 (ES: 2010-2011) and 2013-2014. Using a standardised form, GPs registered all deceased adult patients in their practice and reported for five end-of-life care topics whether they had been discussed with the patient. Non-sudden cancer deaths were included (n=2306; BE: 1233; NL: 729; ES: 344). RESULTS: A statistically significant increase was found between 2009/2010 and 2014 in the prevalence of communication about diagnosis (from 84% to 94%) and options for end-of-life care (from 73% to 90%) in BE, and in GPs' awareness of patients' preferences for medical treatment and a proxy decision-maker in BE (from 41% and 20% up to 53% and 28%) and the NL (from 62% and 32% up to 70% and 52%). Communication about options for end-of-life care and psychosocial problems decreased in the NL (from 88% and 91% down to 73%) and ES (from 76% and 77% down to 26% and 39%). CONCLUSION: Considerable change in GP-patient communication seems possible in a relatively short time span, but communication cannot be assumed to increase over time. Increasing specialisation of care and task differentiation may lead to new roles in communication for healthcare providers in primary and secondary care. Improved information sharing between GPs and other healthcare providers may be necessary to ensure that patients have the chance to discuss important end-of-life topics.
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Médicos Generales , Neoplasias , Cuidado Terminal , Adulto , Comunicación , Muerte , Humanos , Neoplasias/epidemiología , Neoplasias/terapia , Estudios Retrospectivos , Cuidado Terminal/psicologíaRESUMEN
BACKGROUND: General practitioners (GPs) can be considered the designated professionals to identify high fall risk and to guide older people to fall preventive care. Currently it is not exactly known how GPs treat this risk. This study aims to investigate GPs' daily practice regarding fall preventive care for frail older patients. METHODS: Sixty-five GPs from 32 Dutch practices participated in this study for a period of 12 months. When a GP entered specific International Classification of Primary Care-codes related to frailty and/or high fall risk in their Electronic Health Records, a pop-up appeared asking "Is this patient frail?". If the GP confirmed this, the GP completed a short questionnaire about patient's fall history and fear of falling (FOF), and the fall preventive care provided. RESULTS: The GPs completed questionnaires regarding 1394 frail older patients aged ≥75. Of 20% of these patients, the GPs did not know whether they had experienced a fall or not. The GPs did not know whether a FOF existed in even more patients (29%). Of the patients with a fall history and/or a FOF (N = 726), 37% (N = 271) received fall preventive care. Two main reasons for not offering fall preventive care to these patients were: I) the patient finds treatment too intensive or too much of a hassle (37%), and II) the GP identified a high fall risk but the patient did not acknowledge this (14%). When patients were treated for high fall risk, the GP and the physiotherapist were the most frequently involved health care providers. The involved health care providers most often treated mobility limitations, cardiovascular risk factors, and FOF. CONCLUSIONS: The results from this study show that GPs were frequently not aware of their frail patient's fall history and/or FOF and that the majority of the frail older patients with a fall history and/or FOF did not receive fall preventive care. Developing systematic screening strategies for the primary care setting enhancing the identification of high fall risk and the provision of fall preventive care may improve patients' quality of life and reduce health care costs.
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Accidentes por Caídas , Médicos Generales , Accidentes por Caídas/prevención & control , Anciano , Miedo , Humanos , Limitación de la Movilidad , Calidad de VidaRESUMEN
BACKGROUND: In an abdominal symptom study in primary care in six European countries, 511 cases of cancer were recorded prospectively among 61,802 patients 16 years and older in Norway, Denmark, Sweden, Netherlands, Belgium and Scotland. Colorectal cancer is one of the main types of cancer associated with abdominal symptoms; hence, an in-depth subgroup analysis of the 94 colorectal cancers was carried out in order to study variation in symptom presentation among cancers in different anatomical locations. METHOD: Initial data capture was by completion of standardised forms containing closed questions about symptoms recorded during the consultation. Follow-up data were provided by the GP after diagnosis, based on medical record data made after the consultation. GPs also provided free text comments about the diagnostic procedure for individual patients. Fisher's exact test was used to analyse differences between groups. RESULTS: Almost all symptoms recorded could indicate colorectal cancer. 'Rectal bleeding' had a specificity of 99.4% and a PPV of 4.0%. Faecal occult blood in stool (FOBT) or anaemia may indicate gastrointestinal bleeding: when these symptoms and signs were combined, sensitivity reached 57.5%, with 69.2% for cancer in the distal colon. For proximal colon cancers, none of 18 patients had 'Rectal bleeding' at the initial consultation, but three of the 18 did so at a later consultation. 'Abdominal pain, lower part', 'Constipation' and 'Distended abdomen, bloating' were less specific and also less sensitive than 'Rectal bleeding', and with PPV between 0.7% and 1.9%. CONCLUSIONS: Apart from rectal bleeding, single symptoms did not reach the PPV 3% NICE threshold. However, supplementary information such as a positive FOBT or persistent symptoms may revise the PPV upwards. If a colorectal cancer is suspected by the GP despite few symptoms, the total clinical picture may still reach the NICE PPV threshold of 3% and justify a specific referral.
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Neoplasias del Colon , Neoplasias Colorrectales , Neoplasias del Colon/diagnóstico , Neoplasias del Colon/epidemiología , Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/epidemiología , Humanos , Sangre Oculta , Atención Primaria de Salud , Estudios ProspectivosRESUMEN
OBJECTIVES: To estimate the general practitioner (GP) consultation rate attributable to influenza in The Netherlands. METHODS: Regression analysis was performed on the weekly numbers of influenza-like illness (ILI) GP consultations and laboratory reports for influenza virus types A and B and 8 other pathogens over the period 2003-2014 (11 influenza seasons; week 40-20 of the following year). RESULTS: In an average influenza season, 27% and 11% of ILI GP consultations were attributed to infection by influenza virus types A and B, respectively. Influenza is therefore responsible for approximately 107 000 GP consultations (651/100 000) each year in The Netherlands. GP consultation rates associated with influenza infection were highest in children under 5 years of age, at 667 of 100 000 for influenza A and 258 of 100 000 for influenza B. Influenza virus infection was found to be the predominant cause of ILI-related GP visits in all age groups except children under 5, in which respiratory syncytial virus (RSV) infection was found to be the main contributor. CONCLUSIONS: The burden of influenza in terms of GP consultations is considerable. Overall, influenza is the main contributor to ILI. Although ILI symptoms in children under 5 years of age are most often associated with RSV infection, the majority of visits related to influenza occur among children under 5 years of age.
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Gripe Humana/epidemiología , Atención Primaria de Salud/estadística & datos numéricos , Adolescente , Adulto , Factores de Edad , Anciano , Niño , Preescolar , Análisis Costo-Beneficio , Humanos , Lactante , Vacunas contra la Influenza/administración & dosificación , Vacunas contra la Influenza/economía , Gripe Humana/economía , Gripe Humana/prevención & control , Persona de Mediana Edad , Modelos Estadísticos , Países Bajos/epidemiología , Atención Primaria de Salud/economía , Virosis/economía , Virosis/epidemiología , Adulto JovenRESUMEN
The regulations for driving fitness of people using drugs with potential influence on driving capability are embodied in the 'Regelingeisengeschiktheid 2000' (REG2000). The Health Council of the Netherlands (HCN) adviced to design more strict regulations for professional drivers. This advice has not yet been approved by the minister due to implementation complexity. The HCN recommends to follow the by the KNMP formulated advices when using category II psychostimulants or category III antidepressants, benzodiazepines, antipsychotics, antihistamines, anti-epileptics or opioids. The KNMP advices for driving participation are broadly available via the public websites www.apotheek.nl and www.rijveiligmetmedicijnen.nl. Both websites are written in accessible language level. The HCN advices to enhance scientific research concerning influence on driving fitness before approving a drug, to use standard procedures to prevent ad hoc decisions concerning driving fitness and the use of checklists for doctors when preparing driving fitness attests.
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Antipsicóticos , Conducción de Automóvil , Antidepresivos , Benzodiazepinas , Ejercicio Físico , HumanosRESUMEN
BackgroundDespite the early development of Google Flu Trends in 2009, standards for digital epidemiology methods have not been established and research from European countries is scarce.AimIn this article, we study the use of web search queries to monitor influenza-like illness (ILI) rates in the Netherlands in real time.MethodsIn this retrospective analysis, we simulated the weekly use of a prediction model for estimating the then-current ILI incidence across the 2017/18 influenza season solely based on Google search query data. We used weekly ILI data as reported to The European Surveillance System (TESSY) each week, and we removed the then-last 4 weeks from our dataset. We then fitted a prediction model based on the then-most-recent search query data from Google Trends to fill the 4-week gap ('Nowcasting'). Lasso regression, in combination with cross-validation, was applied to select predictors and to fit the 52 models, one for each week of the season.ResultsThe models provided accurate predictions with a mean and maximum absolute error of 1.40 (95% confidence interval: 1.09-1.75) and 6.36 per 10,000 population. The onset, peak and end of the epidemic were predicted with an error of 1, 3 and 2 weeks, respectively. The number of search terms retained as predictors ranged from three to five, with one keyword, 'griep' ('flu'), having the most weight in all models.DiscussionThis study demonstrates the feasibility of accurate, real-time ILI incidence predictions in the Netherlands using Google search query data.
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Gripe Humana/epidemiología , Internet/estadística & datos numéricos , Vigilancia de la Población/métodos , Motor de Búsqueda/estadística & datos numéricos , Recolección de Datos/métodos , Brotes de Enfermedades/estadística & datos numéricos , Humanos , Incidencia , Modelos Estadísticos , Modelos Teóricos , Países Bajos/epidemiología , Motor de Búsqueda/métodos , Estaciones del Año , Estados Unidos/epidemiologíaRESUMEN
Ambulance dispatches for respiratory syndromes reflect incidence of influenza-like illness in primary care. Associations are highest in children (15%-34% of respiratory calls attributable to influenza), out-of-office hours (9%), and highest urgency-level calls (9%-11%). Ambulance dispatches might be an additional source of data for severe influenza surveillance.
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Asesoramiento de Urgencias Médicas/estadística & datos numéricos , Vigilancia de la Población/métodos , Infecciones del Sistema Respiratorio/epidemiología , Enfermedad Aguda , Adolescente , Adulto , Factores de Edad , Anciano , Ambulancias/estadística & datos numéricos , Niño , Humanos , Gripe Humana/epidemiología , Persona de Mediana Edad , Estudios Retrospectivos , Adulto JovenRESUMEN
We describe the epidemiological characteristics, pattern of circulation, and geographical distribution of influenza B viruses and its lineages using data from the Global Influenza B Study. We included over 1.8 million influenza cases occurred in thirty-one countries during 2000-2018. We calculated the proportion of cases caused by influenza B and its lineages; determined the timing of influenza A and B epidemics; compared the age distribution of B/Victoria and B/Yamagata cases; and evaluated the frequency of lineage-level mismatch for the trivalent vaccine. The median proportion of influenza cases caused by influenza B virus was 23.4%, with a tendency (borderline statistical significance, p = 0.060) to be higher in tropical vs. temperate countries. Influenza B was the dominant virus type in about one every seven seasons. In temperate countries, influenza B epidemics occurred on average three weeks later than influenza A epidemics; no consistent pattern emerged in the tropics. The two B lineages caused a comparable proportion of influenza B cases globally, however the B/Yamagata was more frequent in temperate countries, and the B/Victoria in the tropics (p = 0.048). B/Yamagata patients were significantly older than B/Victoria patients in almost all countries. A lineage-level vaccine mismatch was observed in over 40% of seasons in temperate countries and in 30% of seasons in the tropics. The type B virus caused a substantial proportion of influenza infections globally in the 21st century, and its two virus lineages differed in terms of age and geographical distribution of patients. These findings will help inform health policy decisions aiming to reduce disease burden associated with seasonal influenza.
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Virus de la Influenza B/patogenicidad , Gripe Humana/epidemiología , Epidemias/historia , Epidemias/estadística & datos numéricos , Monitoreo Epidemiológico , Femenino , Historia del Siglo XXI , Humanos , Subtipo H1N1 del Virus de la Influenza A/inmunología , Virus de la Influenza A/inmunología , Virus de la Influenza B/inmunología , Virus de la Influenza B/metabolismo , Vacunas contra la Influenza/inmunología , Gripe Humana/historia , Masculino , Vigilancia de la Población/métodos , Estaciones del AñoRESUMEN
BackgroundTo control respiratory syncytial virus (RSV), which causes acute respiratory infections, data and methods to assess its epidemiology are important.AimWe sought to describe RSV seasonality, affected age groups and RSV-type distribution over 12 consecutive seasons in the Netherlands, as well as to validate the moving epidemic method (MEM) for monitoring RSV epidemics.MethodsWe used 2005-17 laboratory surveillance data and sentinel data. For RSV seasonality evaluation, epidemic thresholds (i) at 1.2% of the cumulative number of RSV-positive patients per season and (ii) at 20 detections per week (for laboratory data) were employed. We also assessed MEM thresholds.ResultsIn laboratory data RSV was reported 25,491 times (no denominator). In sentinel data 5.6% (767/13,577) of specimens tested RSV positive. Over 12 seasons, sentinel data showed percentage increases of RSV positive samples. The average epidemic length was 18.0 weeks (95% confidence intervals (CI): 16.3-19.7) and 16.5 weeks (95% CI: 14.0-18.0) for laboratory and sentinel data, respectively. Epidemics started on average in week 46 (95% CI: 45-48) and 47 (95% CI: 46-49), respectively. The peak was on average in the first week of January in both datasets. MEM showed similar results to the other methods. RSV incidence was highest in youngest (0-1 and >1-2 years) and oldest (>65-75 and > 75 years) age groups, with age distribution remaining stable over time. RSV-type dominance alternated every one or two seasons.ConclusionsOur findings provide baseline information for immunisation advisory groups. The possibility of employing MEM to monitor RSV epidemics allows prospective, nearly real-time use of surveillance data.
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Infecciones por Virus Sincitial Respiratorio/epidemiología , Virus Sincitial Respiratorio Humano/aislamiento & purificación , Vigilancia de Guardia , Adolescente , Adulto , Distribución por Edad , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Epidemias/estadística & datos numéricos , Femenino , Humanos , Incidencia , Lactante , Recién Nacido , Laboratorios/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Países Bajos/epidemiología , Vigilancia de la Población/métodos , Estaciones del Año , Factores de Tiempo , Adulto JovenRESUMEN
OBJECTIVES: This paper aims to describe the degree to which general practitioners (GPs) explore suicidal behaviour among depressed patients in the Netherlands. DESIGN: An observational study of consultations between GPs and depressed patients. SETTING: 39 sentinel GP practices within the Netherlands in 2017. PARTICIPANTS: Patients with a registration of depression. PRIMARY AND SECONDARY OUTCOME MEASURES: Primary outcome measure is suicide exploration by the GP. Secondary outcome measures at patient level, assessed by surveying GPs, include prevalence and severity of suicidal thoughts. Secondary outcome measures at GP level include follow-up actions of GP and reasons not to explore suicidality. RESULTS: A total of 1034 questionnaires were included in the analyses. GPs assessed and explored suicidality in 44% of patients with depression (66% in patients with a new episode of depression). GPs explored suicidal feelings more often in patients with a new episode of depression (OR 4.027, p<0.001, 95% CI 2.924 to 5.588), male patients (OR 1.709, p<0.001, 95% CI 1.256 to 2.330) or younger patients (OR 1.017, p<0.001, 95% CI 1.009 to 1.026). Multilevel analysis showed that 22% of the variation in suicide exploration is due to differences in GP practice. Thirty-eight per cent of the patients who were asked by their GP, reported (severe) suicidal ideation. Most GPs (68%) did not explore suicidal feelings because they thought the patient would not be suicidal. CONCLUSION: GPs explored suicidal thoughts in less than half of all depressed patients and in two-thirds of patients with a new episode of depression. Suicide prevention training is recommended to enhance suicide exploration.
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Trastorno Depresivo/psicología , Medicina General/estadística & datos numéricos , Ideación Suicida , Suicidio/psicología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Trastorno Depresivo/epidemiología , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Análisis Multinivel , Países Bajos/epidemiología , Rol del Médico , Relaciones Médico-Paciente , Derivación y Consulta , Factores de Riesgo , Vigilancia de Guardia , Intento de Suicidio/psicología , Encuestas y Cuestionarios , Adulto JovenRESUMEN
BACKGROUND: While influenza-like-illness (ILI) surveillance is well-organized at primary care level in Europe, few data are available on more severe cases. With retrospective data from intensive care units (ICU) we aim to fill this current knowledge gap. Using multiple parameters proposed by the World Health Organization we estimate the burden of severe acute respiratory infections (SARI) in the ICU and how this varies between influenza epidemics. METHODS: We analyzed weekly ICU admissions in the Netherlands (2007-2016) from the National Intensive Care Evaluation (NICE) quality registry (100% coverage of adult ICUs in 2016; population size 14 million) to calculate SARI incidence, SARI peak levels, ICU SARI mortality, SARI mean Acute Physiology and Chronic Health Evaluation (APACHE) IV score, and the ICU SARI/ILI ratio. These parameters were calculated both yearly and per separate influenza epidemic (defined epidemic weeks). A SARI syndrome was defined as admission diagnosis being any of six pneumonia or pulmonary sepsis codes in the APACHE IV prognostic model. Influenza epidemic periods were retrieved from primary care sentinel influenza surveillance data. RESULTS: Annually, an average of 13% of medical admissions to adult ICUs were for a SARI but varied widely between weeks (minimum 5% to maximum 25% per week). Admissions for bacterial pneumonia (59%) and pulmonary sepsis (25%) contributed most to ICU SARI. Between the eight different influenza epidemics under study, the value of each of the severity parameters varied. Per parameter the minimum and maximum of those eight values were as follows: ICU SARI incidence 558-2400 cumulated admissions nationwide, rate 0.40-1.71/10,000 inhabitants; average APACHE score 71-78; ICU SARI mortality 13-20%; ICU SARI/ILI ratio 8-17 cases per 1000 expected medically attended ILI in primary care); peak-incidence 101-188 ICU SARI admissions in highest-incidence week, rate 0.07-0.13/10,000 population). CONCLUSIONS: In the ICU there is great variation between the yearly influenza epidemic periods in terms of different influenza severity parameters. The parameters also complement each other by reflecting different aspects of severity. Prospective syndromic ICU SARI surveillance, as proposed by the World Health Organization, thereby would provide insight into the severity of ongoing influenza epidemics, which differ from season to season.
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Epidemias/clasificación , Gripe Humana/clasificación , Infecciones del Sistema Respiratorio/complicaciones , Estadística como Asunto/métodos , APACHE , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Epidemias/estadística & datos numéricos , Femenino , Humanos , Gripe Humana/epidemiología , Unidades de Cuidados Intensivos/organización & administración , Masculino , Persona de Mediana Edad , Países Bajos/epidemiología , Vigilancia de la Población/métodos , Infecciones del Sistema Respiratorio/epidemiología , Índice de Severidad de la Enfermedad , Estadística como Asunto/normasRESUMEN
BACKGROUND: Measuring the quality of palliative care in a systematic way using quality indicators can illuminate differences between patient groups. AIM: To investigate differences in the quality of palliative care in primary care between people who died of cancer and people who died of organ failure. DESIGN: Mortality follow-back survey among general practitioners in Belgium, the Netherlands, and Spain (2013-2014), and Italy (2013-2015). A standardized registration form was used to construct quality indicators regarding regular pain measurement, acceptance of the approaching end of life, communication about disease-related topics with patient and next-of-kin; repeated multidisciplinary consultations; involvement of specialized palliative care; place of death; and bereavement counseling. SETTING/PARTICIPANTS: Patients (18+) who died non-suddenly of cancer, cardiovascular disease, or respiratory disease ( n = 2360). RESULTS: In all countries, people who died of cancer scored higher on the quality indicators than people who died of organ failure, particularly with regard to pain measurement (between 17 and 35 percentage-point difference in the different countries), the involvement of specialized palliative care (between 20 and 54 percentage points), and regular multidisciplinary meetings (between 12 and 24 percentage points). The differences between the patient groups varied by country, with Belgium showing most group differences (eight out of nine indicators) and Spain the fewest (two out of nine indicators). CONCLUSION: People who died of organ failure are at risk of receiving lower quality palliative care than people who died of cancer, but the differences vary per country. Initiatives to improve palliative care should have different priorities depending on the healthcare and cultural context.
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Insuficiencia Multiorgánica/mortalidad , Neoplasias/mortalidad , Cuidados Paliativos/métodos , Atención Primaria de Salud , Anciano , Anciano de 80 o más Años , Enfermedades Cardiovasculares/mortalidad , Europa (Continente)/epidemiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cuidados Paliativos/normas , Indicadores de Calidad de la Atención de Salud/estadística & datos numéricos , Insuficiencia Respiratoria/mortalidadRESUMEN
A seasonal reassortant A(H1N2) influenza virus harbouring genome segments from seasonal influenza viruses A(H1N1)pdm09 (HA and NS) and A(H3N2) (PB2, PB1, PA, NP, NA and M) was identified in March 2018 in a 19-months-old patient with influenza-like illness (ILI) who presented to a general practitioner participating in the routine sentinel surveillance of ILI in the Netherlands. The patient recovered fully. Further epidemiological and virological investigation did not reveal additional cases.
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Subtipo H1N2 del Virus de la Influenza A/aislamiento & purificación , Gripe Humana/diagnóstico , Virus Reordenados/genética , Femenino , Humanos , Lactante , Subtipo H1N1 del Virus de la Influenza A/genética , Subtipo H1N1 del Virus de la Influenza A/aislamiento & purificación , Subtipo H1N2 del Virus de la Influenza A/genética , Subtipo H3N2 del Virus de la Influenza A/genética , Subtipo H3N2 del Virus de la Influenza A/aislamiento & purificación , Datos de Secuencia Molecular , Países Bajos , Filogenia , Virus Reordenados/aislamiento & purificación , Estaciones del Año , Vigilancia de Guardia , Secuenciación Completa del GenomaRESUMEN
BACKGROUND: Different abdominal symptoms may signal cancer, but their role is unclear. AIM: To examine associations between abdominal symptoms and subsequent cancer diagnosed in the abdominal region. DESIGN AND SETTING: Prospective cohort study comprising 493 GPs from surgeries in Norway, Denmark, Sweden, Scotland, Belgium, and the Netherlands. METHOD: Over a 10-day period, the GPs recorded consecutive consultations and noted: patients who presented with abdominal symptoms pre-specified on the registration form; additional data on non-specific symptoms; and features of the consultation. Eight months later, data on all cancer diagnoses among all study patients in the participating general practices were requested from the GPs. RESULTS: Consultations with 61 802 patients were recorded and abdominal symptoms were documented in 6264 (10.1%) patients. Malignancy, both abdominal and non-abdominal, was subsequently diagnosed in 511 patients (0.8%). Among patients with a new cancer in the abdomen (n = 251), 175 (69.7%) were diagnosed within 180 days after consultation. In a multivariate model, the highest sex- and age-adjusted hazard ratio (HR) was for the single symptom of rectal bleeding (HR 19.1, 95% confidence interval = 8.7 to 41.7). Positive predictive values of >3% were found for macroscopic haematuria, rectal bleeding, and involuntary weight loss, with variations according to age and sex. The three symptoms relating to irregular bleeding had particularly high specificity in terms of colorectal, uterine, and bladder cancer. CONCLUSIONS: A patient with undiagnosed cancer may present with symptoms or no symptoms. Irregular bleeding must always be explained. Abdominal pain occurs with all types of abdominal cancer and several symptoms may signal colorectal cancer. The findings are important as they influence how GPs think and act, and how they can contribute to an earlier diagnosis of cancer.
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Neoplasias Abdominales/diagnóstico , Dolor Abdominal/patología , Detección Precoz del Cáncer , Hemorragia Gastrointestinal/patología , Hematuria/patología , Atención Primaria de Salud , Derivación y Consulta , Neoplasias Abdominales/epidemiología , Neoplasias Abdominales/patología , Dolor Abdominal/etiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Bélgica/epidemiología , Dinamarca/epidemiología , Femenino , Hemorragia Gastrointestinal/etiología , Hematuria/etiología , Humanos , Masculino , Persona de Mediana Edad , Países Bajos/epidemiología , Noruega/epidemiología , Estudios Prospectivos , Escocia/epidemiología , Suecia/epidemiología , Pérdida de Peso , Adulto JovenRESUMEN
BACKGROUND: Chlamydia prevalence remains high despite scaling-up control efforts. Transmission is not effectively interrupted without partner notification (PN) and (timely) partner treatment (PT). In the Netherlands, the follow-up of partners is not standardized and may depend on GPs' time and priorities. We investigated current practice and attitude of GPs towards PN and PT to determine the potential for Patient-Initiated Partner Treatment, which is legally not supported yet. METHODS: Multiple data-sources were combined for a landscape analysis. Quantitative data on (potential) PT were obtained from prescriptions in the national pharmacy register (2004-2014) and electronic patient data from NIVEL-Primary Care Database (PCD) and from STI consultations in a subgroup of sentinel practices therein. Furthermore, we collected information on current practice via two short questionnaires at a national GP conference and obtained insight into GPs' attitudes towards PN/PT in a vignette study among GPs partaking in NIVEL-PCD. RESULTS: Prescription data showed Azithromycin double dosages in 1-2% of cases in the pharmacy register (37.000 per year); probable chlamydia-specific repeated prescriptions or double dosages of other antibiotics in NIVEL-PCD (115/1078) could not be interpreted as PT for chlamydia with certainty. STI consultation data revealed direct PT in 6/100 cases, via partner prescription or double doses. In the questionnaires the large majority of GPs (>95% of 1411) reported to discuss PN of current and ex-partner(s) with chlamydia patients. Direct PT was indicated as most common method by 4% of 271 GPs overall and by 12% for partners registered in the same practice. Usually, GPs leave further steps to the patients (83%), advising patients to tell partners to get tested (56%) or treated (28%). In the vignette study, 16-20% of 268 GPs indicated willingness to provide direct PT, depending on patient/partner profile, more (24-45%) if patients would have the chance to notify their partner first. CONCLUSION: GPs in the Netherlands already treat some partners of chlamydia cases directly, especially partners registered in the same practice. Follow-up of partner notification and treatment in general practice needs more attention. GPs may be open to implement PIPT more often, provided there are clear guidelines to arrange this legally and practically.
Asunto(s)
Actitud del Personal de Salud , Infecciones por Chlamydia/tratamiento farmacológico , Infecciones por Chlamydia/transmisión , Trazado de Contacto/estadística & datos numéricos , Medicina General , Pautas de la Práctica en Medicina/estadística & datos numéricos , Adulto , Factores de Edad , Antibacterianos/uso terapéutico , Trazado de Contacto/métodos , Consejo Dirigido , Prescripciones de Medicamentos/estadística & datos numéricos , Femenino , Humanos , Masculino , Países Bajos , Sistema de Registros , Factores Sexuales , Parejas Sexuales , Encuestas y Cuestionarios , Adulto JovenRESUMEN
BACKGROUND: Abdominal symptoms are diagnostically challenging to general practitioners (GPs): although common, they may indicate cancer. In a prospective cohort of patients, we examined abdominal symptom frequency, initial diagnostic suspicion, and actions of GPs in response to abdominal symptoms. METHODS: Over a 10-day period, 493 GPs in Norway, Denmark, Sweden, Belgium, the Netherlands, and Scotland, recorded consecutive consultations: sex, date of birth and any specified abdominal symptoms. For patients with abdominal symptoms, additional data on non-specific symptoms, GPs' diagnostic suspicion, and features of the consultation were noted. Data on all cancer diagnoses among all included patients were requested from the GPs eight months later. FINDINGS: Consultations with 61802 patients were recorded. Abdominal symptoms were recorded in 6264 (10.1%) patients. A subsequent malignancy was reported in 511 patients (0.8%): 441 (86.3%) had a new cancer, 70 (13.7%) a recurrent cancer. Abdominal symptoms were noted in 129 (25.2%) of cancer patients (P < 0.001), rising to 34.5% for the 89 patients with cancer located in the abdominal region. PPV for any cancer given any abdominal symptom was 2.1%. In symptomatic patients diagnosed with cancer, GPs noted a suspicion of cancer for 85 (65.9%) versus 1895 (30.9%) when there was no subsequent cancer (P < 0.001). No suspicion was noted in 32 (24.8%) cancer patients. The GP's intuitive cancer suspicion was independently associated with a subsequent new cancer diagnosis (OR 2.11, 95% CI 1.15-3.89). Laboratory tests were ordered for 45.4% of symptomatic patients, imaging for 10.4%, referral or hospitalization for 20.0%: all were more frequent in subsequent cancer patients (P < 0.001). INTERPRETATION: Abdominal symptoms pointed to abdominal cancers rather than to other cancers. However, the finding of abdominal symptoms in only one third of patients with an abdominal cancer, and the lack of cancer suspicion in a quarter of symptomatic cancer patients, provide challenges for GPs' diagnostic thinking and referral practices.
RESUMEN
Information about influenza vaccine effectiveness (IVE) is important for vaccine strain selection and immunization policy decisions. The test-negative design (TND) case-control study is commonly used to obtain IVE estimates. However, the definition of the control patients may influence IVE estimates. We have conducted a TND study using the Dutch Sentinel Practices of NIVEL Primary Care Database which includes data from patients who consulted the General Practitioner (GP) for an episode of acute influenza-like illness (ILI) or acute respiratory infection (ARI) with known influenza vaccination status. Cases were patients tested positive for influenza virus. Controls were grouped into those who tested (1) negative for influenza virus (all influenza negative), (2) negative for influenza virus, but positive for respiratory syncytial virus, rhinovirus or enterovirus (non-influenza virus positive), and (3) negative for these four viruses (pan-negative). We estimated the IVE over all epidemic seasons from 2003/2004 through 2013/2014, pooled IVE for influenza vaccine partial/full matched and mismatched seasons and the individual seasons using generalized linear mixed-effect and multiple logistic regression models. The overall IVE adjusted for age, GP ILI/ARI diagnosis, chronic disease and respiratory allergy was 35% (95% CI: 15-48), 64% (95% CI: 49-75) and 21% (95% CI: -1 to 39) for all influenza negative, non-influenza virus positive and pan-negative controls, respectively. In both the main and subgroup analyses IVE estimates were the highest using non-influenza virus positive controls, likely due to limiting inclusion of controls without laboratory-confirmation of a virus causing the respiratory disease.
Asunto(s)
Vacunas contra la Influenza/inmunología , Gripe Humana/epidemiología , Gripe Humana/prevención & control , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Casos y Controles , Niño , Preescolar , Grupos Control , Femenino , Humanos , Lactante , Recién Nacido , Vacunas contra la Influenza/administración & dosificación , Masculino , Persona de Mediana Edad , Países Bajos/epidemiología , Resultado del Tratamiento , Adulto JovenRESUMEN
Influenza vaccine effectiveness (IVE) varies over different influenza seasons and virus (sub)types/lineages. To assess the association between IVE and circulating influenza virus (sub)types/lineages, we estimated the overall and (sub)type specific IVE in the Netherlands. We conducted a test-negative case control study among subjects with influenza-like illness or acute respiratory tract infection consulting the Sentinel Practices over 11 influenza seasons (2003/2004 through 2013/2014) in the Netherlands. The adjusted IVE was estimated using generalized linear mixed modelling and multiple logistic regression. In seven seasons vaccine strains did not match the circulating viruses. Overall adjusted IVE was 40% (95% CI 18 to 56%) and 20% (95% CI -5 to 38%) when vaccine (partially)matched and mismatched the circulating viruses, respectively. When A(H3N2) was the predominant virus, IVE was 38% (95% CI 14 to 55%). IVE against infection with former seasonal A(H1N1) virus was 83% (95% CI 52 to 94%), and with B virus 67% (95% CI 55 to 76%). In conclusion IVE estimates were particularly low when vaccine mismatched the circulating viruses and A(H3N2) was the predominant influenza virus subtype. Tremendous effort is required to improve vaccine production procedure and to explore the factors that influence the IVE against A(H3N2) virus.
Asunto(s)
Subtipo H1N1 del Virus de la Influenza A/inmunología , Subtipo H3N2 del Virus de la Influenza A/inmunología , Vacunas contra la Influenza/inmunología , Gripe Humana/prevención & control , Adolescente , Adulto , Anciano , Estudios de Casos y Controles , Niño , Preescolar , Femenino , Historia del Siglo XXI , Humanos , Lactante , Recién Nacido , Virus de la Influenza B/inmunología , Gripe Humana/historia , Gripe Humana/virología , Masculino , Persona de Mediana Edad , Países Bajos/epidemiología , Evaluación de Resultado en la Atención de Salud , Estaciones del Año , Vigilancia de Guardia , Adulto JovenRESUMEN
BACKGROUND: While the burden of community-acquired pneumonia and invasive pneumococcal disease (IPD) is still considerable, there is little insight in the factors contributing to disease. Previous research on the lagged relationship between respiratory viruses and pneumococcal disease incidence is inconclusive, and studies correcting for temporal autocorrelation are lacking. OBJECTIVES: To investigate the temporal relation between influenza-like illnesses (ILI) and IPD, correcting for temporal autocorrelation. METHODS: Weekly counts of ILI were obtained from the Sentinel Practices of NIVEL Primary Care Database. IPD data were collected from the Dutch laboratory-based surveillance system for bacterial meningitis from 2004 to 2014. We analysed the correlation between time series, pre-whitening the dependent time series with the best-fit seasonal autoregressive integrated moving average (SARIMA) model to the independent time series. We performed cross-correlations between ILI and IPD incidences, and the (pre-whitened) residuals, in the overall population and in the elderly. RESULTS: We found significant cross-correlations between ILI and IPD incidences peaking at lags -3 overall and at 1 week in the 65+ population. However, after pre-whitening, no cross-correlations were apparent in either population group. CONCLUSION: Our study suggests that ILI occurrence does not seem to be the major driver of IPD incidence in The Netherlands.