Epidemiological and bacterial profile of childhood meningitis in Tunisia.

The worldwide burden of disease of bacterial meningitis remains high, despite the decreasing incidence following introduction of routine vaccination campaigns.The aim of our study was to evaluate the epidemiological and bacteriological profile of paediatric bacterial meningitis (BM) in Tunisian children, during the period 2003-2019, following the implementation of Haemophilus influenzae type b (Hib) vaccine (April 2011) and before 10-valent pneumoccocal conjugate vaccine (PCV10) introduction to the childhood immunization program.All bacteriologically confirmed cases of BM admitted to children's hospital of Tunis were recorded (January 2003 to April 2019). Serogroups of Neisseria meningitidis (Nm) and serotypes of Streptococcus pneumoniae (Sp) and H. influenzae (Hi) and antibiotic resistance were determined using conventional and molecular methods.Among 388 cases, the most frequent species were Sp (51.3%), followed by Nm (27.5%) and Hi (16.8%). We observed a significant decrease in Hi BM rate during the conjugated Hib vaccine use period (P < 0.0001). The main pneumococcal serotypes were 14, 19F, 6B, 23F and 19A and the serotype coverage of PCV10, PCV13, PCV15 and PCV20 was 71.3 and 78.8%, 79.4 and 81.9% respectively. The most frequent Nm serogroup was B (83.1%). Most Hi strains were of serotype b (86.9%). High levels of resistance were found: Sp and Nm to penicillin (respectively 60.1 and 80%) and Hi to ampicillin (42.6%). All meningococcal and Hi isolates were susceptible to third-generation cephalosporins and 7.2% of pneumococcal strains had decreased susceptibility to these antibiotics.The Hib conjugate vaccine decreased the rate of BM. Sp dominated the aetiology of BM in children in Tunisia. Conjugate vaccines introducing decreases not only BM cases but also antimicrobial resistance.

Mortality attributable to tobacco in Tunisian adults, 2016Mortalité attribuable au tabac dans la population tunisienne adulte en 2016.

OBJECTIVE: We aimed to estimate the mortality attributable to current cigarette smoking among Tunisian individuals aged 30 years and over in 2016. METHODS: The number of deaths attributable to cigarette smoking was estimated using the population attributable fraction (PAF) method of calculation. Current cigarette smoking-related data and number of deaths by cause were obtained from a Tunisian national household survey conducted in 2016 (THES-2016) and the "Global Burden of Disease" study respectively. Relative risks for cause-specific mortality among current cigarette smokers compared to never-smokers were obtained mainly from the American cancer prevention study II (CPS II), including adjustments for a range of potential confounders. RESULTS: In 2016, 6,039 deaths were attributed to current cigarette smoking (5,934 in men and 105 in women), accounting for 14.3 % of total deaths in persons aged 30 years and over (24.2 % in men and 0.6 % in women). Lung cancer, chronic obstructive pulmonary diseases and upper aerodigestive tract cancers represented the highest smoking-attributable risks (74.5 %, 49.1 % and 42.2 % respectively). CONCLUSIONS: In the present study, high rates of smoking-attributable mortality were found, mainly among men. In addition to more rigorous application of existing laws, sensitization to the dangers of tobacco, educational anti-smoking campaigns and help in quitting are of prime importance.

IL-10 polymorphism genotypes, haplotypes, and diplotypes are associated with colorectal cancer predisposition and outcome in Tunisian population.

Background and aim: As the presence of single nucleotide polymorphisms (SNPs) in the interleukin (IL)-10 gene continues to be a major challenge in the development of effective therapies for digestive cancers, this case-control study was conducted to assess the possible influence of genotype, haplotype and diplotype for two SNPs (-1082A/G (rs1800896) and -592A/C (rs1800872)) located in the promoter region of IL-10 gene on the incidence, severity and prognosis of colorectal cancer (CRC) in Tunisians. Methods: IL-10 gene SNPs were analyzed in 130 CRC cases and 165 healthy subjects (HS) using PCR-SSP. Results: For the IL-10 -1082A/G SNP, the comparison of genotype frequencies between cases and HS groups showed that the G allele significantly reduced CRC risk under the recessive model (GG vs. AA + AG: OR [95%CI] = 0.44 [0.21-0.93], p = 0.03). Conversely, a positive association was observed between the codominant model (AG vs. AA + GG) and high susceptibility (OR [95%CI] = 1.65 [1.02-2.63], p = 0.04). After stratification by disease site, the recessive model was also found to reduce susceptibility to colon cancer (OR [95%CI] = 0.18 [0.04-0.72], p = 0 0.01), while the homozygote model (AA vs. GG) was suggested as a risk factor (OR [95%CI] = 5.16 [1.31-23.26], p = 0.02). Furthermore, the codominant model (AG vs. AA + GG) doubled the risk of rectum cancer (OR [95%CI] = 1.98 [1.07-3.70], p = 0.03). For the IL-10 -592A/C SNP, the codominant model (AC vs. AA + CC) has a protective effect against the development of CRC (OR [95%CI] = 0.59 [0.36-0.94], p = 0.03). The IL-10 gene haplotype was not associated with CRC risk. A stratified analysis by disease site demonstrated that the presence of Hap3 (-1082G and -592C alleles) specifically reduced the risk of developing colon cancer (OR [95%CI] = 0.51 [0.32-0.80], p = 0.003). Moreover, homozygous Hap3/Hap3 diplotype significantly reduced susceptibility to CRC (OR [95%CI] = 0.35 [0.14-0.85], p = 0.02). Interestingly, this diplotype has not been identified in colon cancer patients. Kaplan-Meier analysis showed that the homozygous Hap2/Hap2 diplotype was significantly associated with decreased overall survival (Log-rank: p = 0.01). This association was also observed in the colon cancer subgroup (Log-rank: p = 0.001). Conclusion: Our findings provide preliminary indications that the -1082A/G and -592/AC SNPs within the IL-10 gene may exhibit significant associations with the pathogenesis and prognostic outcomes of CRC. However, further investigations are still warranted to validate and establish the veracity of our findings.

Burden of cancer attributable to insufficient physical activity in Tunisia.

Background: Insufficient physical activity is a risk factor for several types of cancer. Therefore, estimating the burden of cancer attributable to insufficient physical activity is essential to evaluate the effect of health promotion and prevention interventions. Aims: We estimated the number of incident cancer cases, deaths and disability-adjusted life years (DALYs) attributable to insufficient physical activity in the Tunisian population aged 35 years and older in 2019. Methods: We estimated the age-specific population attributable fractions by sex and cancer site to estimate the proportion of cases, deaths and DALYs that could be avoided with optimal levels of physical activity. We used data on cancer incidence, mortality and DALYs from the Global Burden of Disease study estimates for Tunisia in 2019, and data on physical activity prevalence from a Tunisian population-based survey in 2016. We used site-specific relative risk estimates from meta-analyses and comprehensive reports. Results: The prevalence of insufficient physical activity was 95.6%. In 2019, 16 890 incident cancer cases, 9368 cancer-related deaths and 230 900 cancer-related DALYs were estimated to have occurred in Tunisia. We estimated that 7.9% of incident cancer cases, 9.8% of cancer-related deaths and 9.9% of cancer-related DALYs were attributable to insufficient physical activity. At cancer sites known to be associated with inadequate physical activity, 14.6% of cancer cases, 15.7% of deaths and 15.6% of DALYs were attributable to insufficient physical activity. Conclusion: Insufficient physical activity contributed to almost 10% of the cancer burden in Tunisia in 2019. Reaching optimal physical activity levels would considerably reduce the burden of associated cancers in the long-term.

Study of anxiety-depressive disorders among doctors at "Salah Azaïez" Cancer Institute in Tunis.

INTRODUCTION: Oncologists are often confronted with patients at the end of their lives who are suffering. This can lead to anxiety and depressive disorders (ADD), affecting the quality of the doctors's quality of life. AIM: To compare the level of ADD among doctors practicing at Salah Azaiez Institute (SAI) in Tunis with doctors who do not treat cancer patients, while identifying any factors associated with these disorders. METHODS: We conducted a comparative and analytical study of 141 physicians:53 oncologists practicing at the Salah Institut Azaiez and 91 at other hospital structures (Charles Nicolle's Hospital and Rabta's Hospital), matched by age and gender for a period of 2 months, started from 02 May to 30 June 2022. RESULTS: Our research showed that SAI's doctors were significantly more exposed to anxiety disorders (p= 0.016) compared with other doctors (47.2% vs. 37.5%), without being more exposed to depressive disorders. SAI's doctors reported more associated stress factors, notably exposure to body image-distorting tumors (p<0.001), exposure to the suffering of loved ones (p=0.006), lack of human resources (p=0.017), perceived unsuitability of premises (p=0.001) and overwork (p=0.013). These doctors consumed more alcohol (p=0.04). In addition, 58.5% of SAI's doctors felt that their profession significantly affected their quality of life, compared to 45% of doctors in other hospitals (p=0.04). CONCLUSIONS: All the doctors questioned, "all specialties combined", showed varying rates of anxiety and depressive disorders. However, anxiety disorders were significantly higher among SAI's doctors, for whom stress factors had a greater impact.

Burden of non-communicable diseases in Tunisia, 1990-2017: results from the global burden of disease study.

INTRODUCTION: non-communicable diseases (NCDs) are the leading cause of mortality and disability worldwide especially in developing countries such as Tunisia. We aimed to describe the national burden of non-communicable diseases in 2017 and to analyze disability-adjusted life year trends from 1990 to 2017 in Tunisia by cause and gender. METHODS: we used Joinpoint regression analysis to assess trends of the age standardized disability-adjusted life year rate from 1990 to 2017 and to determine average annual percentage change. RESULTS: non-communicable diseases accounted for 87.7% of total disability-adjusted life year in Tunisia in 2017. The five leading causes of this rate in Tunisia in 2017 were cardiovascular diseases, musculoskeletal disorders, neoplasms, mental disorders and neurological disorders. The trend of disability-adjusted life year rate of non-communicable diseases decreased significantly from 23403.2 per 100.000 (95% CI: 20830.2-26285.8) in 1990 to 18454.6 (95% CI: 15611.3-21555.4) in 2017, with a change of -0.9%; p=0.00. The decrease of the age standardized disability-adjusted life year rate concerned mainly cardiovascular diseases and neoplasms secondly. This decrease was more important in female (change=-1.1, p=0.00) in comparison to males (change=-0.7, p=0.00). On the other hand, the increase of the standardized disability-adjusted life year rate was related to musculoskeletal disorders, diabetes, kidney disorders and substance use disorders with a significant annual percentage change of 0.1%, 0.2% and 1.3% (p=0.00) respectively. Conclusion: the implementation of the national strategy is the key solution to mitigate the impact of non-communicable diseases in Tunisia.

COVID-19 Vaccination Acceptance and Its Associated Factors among Cancer Patients in Tunisia.

BACKGROUND: Vaccination is the most effective way to fight the COVID-19 pandemic and to protect people who have a higher risk of developing severe illness and death from COVID-19 such as cancer patients. We aimed in this study to determine the acceptance rate of COVID-19 vaccination of the Salah Azaiez Institute (SAI) of cancer of Tunisia patients and to identify its associated factors. METHODS: It was a cross sectional study about patients admitted to the SAI for treatment during the month of February 2021. Univariate and multivariate analyses were performed to identify factors associated with the COVID-19 vaccine acceptance among Tunisian cancer patients. RESULTS: A total of 200 patients were included in this study with a mean age of 54.4±12.7 years and a gender ratio of 0.5. Only 35.0% of surveyed patients reported their acceptance to receive the COVID-19 vaccine. Multivariate analysis showed that believing in COVID-19 vaccine safety and efficacy (OR=3.1 [1.3-7.4]), enrollment in the COVID-19 vaccine platform (OR=8.3 [1.8-38.1]) and the willingness to receive influenza vaccine (OR=3.9 [1.6-9.3]) were independently associated with the COVID-19 vaccine acceptance among SAI cancer patients. CONCLUSIONS: The COVID-19 vaccine acceptance rate found in this study was low. Communication strategies of the vaccination campaigns should provide clear, simple and detailed messages about the efficacy and the benefits of the COVID-19 vaccines. More engagement of health authorities to promote COVID-19 vaccination is necessary.

Pathways to mental health care for patients with severe mental illness in Tunisia.

INTRODUCTION: Schizophrenia, bipolar disorder and schizoaffective disorders are severe mental illnesses (SMI) associated with high levels of co-morbid psychopathology and premature mortality. Reducing delays in accessing services and providing early intervention are key strategies in preventing morbidity and mortality associated with these diseases. The pathways to psychiatric care have been studied in many countries worldwide. To the best of our knowledge, no study on this subject has so far been conducted in Tunisia. The purpose of the present study was to understand the pathways of care adopted by patients, to determine the care delay and to explore the relationship between delayed consultation and socio-demographic and clinical variables. METHODS: This is a cross-sectional descriptive study conducted at the Department Psychiatry A of Razi Hospital including patients with SMI consulting the outpatient clinic between January and March 2018. Data was collected by one medical investigator who conducted face-to-face interviews with patients using a questionnaire based on the World Health Organization's "Pathway Questionnaire". Data analysis was done using the SPSS software version 17. A multivariate analysis was performed to study the relation between delayed consultation and socio-demographic and clinical variables. RESULTS: A total of 232 patients responded to the questionnaire. The average age was 41.3 years ± 10.1 and the gender ratio was 1.2. More than the third of the study population consulted a traditional healer in the first place and sixty percent of the patients had recourse to a medical doctor. The average consultation delay was 15 months (±23.0) with a median of 6 months. The delay was more than 6 months in around half of the cases. The symptoms that motivated the first consultation were hallucinations, sleep disorders and aggressive behavior. The main reason of delayed consultation was lack of knowledge about psychiatric symptoms followed by illness beliefs and insidious onset of the illness. The multivariate analysis showed a significant relationship between aggressive behavior and non-delayed consultation. CONCLUSION: The principal recommendations are to strengthen public education and awareness about SMI in the Tunisian population and to implement an early detection program of these disorders.

Colorectal Cancer Incidence Trend and Projections in Tunisia (1994 - 2024)

Objectives: The aim of this study was to describe trends of colorectal cancer incidence during the period 1994-2009 and to generate projections until 2024. Methods: The North-Tunisia Cancer Registry (NTCR) was the source of data for patients with CRC. This registry lists, since 1994, cases of malignant tumors in people living in North Tunisia, including the District of Tunis, the north east and the north west. Cases were classified using the International Classification of Diseases for Oncology. Data were analyzed using R software and Joinpoint one was employed to analyse trends. Projections were performed using the Age Period Cohort based on poisson regression. Results: During the period 1994 to 2009, 6,909 new cases of CRC were registered in Northern Tunisia. The age standardized incidence rate (ASR) increased significantly from 6.4/100,000 in 1994 to 12.4/100,000 in 2009. Trends in CRC incidence was significantly rising with an annual percentage change (APC) of + 3,9% [2.8% -5.1%]. Without effective interventions, the predicted CRC ASR would be 39.3/100,000 [CI 95%: 32,9/100,000 - 48,8/100,000] in 2024. Conclusion: The incidence of colorectal cancer is clearly increasing in Tunisia. Strengthening of screening and primary prevention measures is to be recommended.

Incidence Trend for Non-Hodgkin Lymphoma in the North Tunisian Population, 1998-2009.

BACKGROUND: In 2008, non-Hodgkin lymphoma ranked tenth among other malignancies worldwide with an incidence of around 5 cases per 100,000 in both genders. The latest available rates in Tunisia are from 2006. MATERIALS AND METHODS: This study aimed to provide an update about NHL incidence for 2009 and its trend between 1998 and 2009 as well as a projection until 2024, using data from the Salah Azaiz Institute hospital registry and the Noth Tunisia cancer registry. RESULTS: In 2009, the NHL incidence in the north of Tunisia was 4.03 cases per 100,000, 4.97 for men and 3.10 for women. Diffuse large B-cell lymphoma (DLBCL) accounted for 63.2% of all NHL subtypes. Between 1998 and 2009, the overall trend showed no significant change. When we compared the trend between two periods (1998-2005 and 2005-2009), joinpoint regression showed a significant decrease of NHL incidence in the first period with an annual percentage change (APC) of -6.7% (95% CI:[-11.2%;-2%]), then the incidence significantly increased from 2005 to 2009 with an APC of 30.5% (95% CI: [16.1%; 46.6%]. The analyses of the different subtype trends showed a significant decrease in DLBCL incidence between 1998 and 2000 (APC:-21.5; 95% CI: [-31.4%;-10.2%]) then the incidence significantly increased between 2004 and 2007 (APC: 18.5; 95% CI: [3,6%;35.5%]). Joint point analysis of the age-period-cohort model projection showed a significant increase between 2002 and 2024 with an APC of 4.5% (%95 CI: [1.5%; 7.5%]). The estimated ASR for 2024 was 4.55/100 000 (95% CI: [3.37; 6.15]). CONCLUSIONS: This study revealed an overall steady trend in the incidence of NHL in northern Tunisia between 1998 and 2009. Projection showed an increase in the incidence in NHL in both genders which draw the attention to the national and worldwide burden of this malignancy.