Vitamin D in healthy Tunisian population: Preliminary results.

Background: Vitamin D deficiency is one of the most common medical conditions worldwide. In Tunisia, several studies evaluated Vitamin D status, but this was concerning specific populations (pregnant women, obese or diabetic patients and children with asthma). The only study that evaluated Vitamin D status in a healthy Tunisian population was conducted by Meddeb and associeties in 2002. The update of data available, based on the currently recommended limits, is necessary. This study aimed to estimate the prevalence of hypovitaminosis D in a healthy Tunisian population, and correlate the values with potential risk factors. Methods: It was conducted on 209 Tunisian healthy subjects. Data collected included clinical characteristics and dietary intakes. We measured 25-hydroxyvitamin D (25(OH)D), parathyroid hormone (PTH), glycemia, creatinine, calcium, phosphorus, and alkaline phosphatase concentrations. Hypovitaminosis D was retained for 25(OH)D concentrations <75 nmol/L. Vitamin D deficiency was defined by 25(OH)D concentrations <25 nmol/L. Results: The prevalence of hypovitaminosis D and vitamin D deficiency were respectively 92.3% and 47.6%. The main factors that were significantly associated with low vitamin D levels in our multivariate analysis were veiling, living in rural areas and sunscreen use. However, sex, age, socioeconomic level, phototype, solar exposure score, smoking and bone mass index, were not statistically associated with hypovitaminosis D. The study of relationship between vitamin D status and serum PTH levels showed a significative and negative correlation (P < 0.005). Conclusions: Given the high prevalence of vitamin D, an adapted health policy is essential. A widespread vitamin D supplementation and food fortification seems to be necessary in Tunisia.

Disinfection booths in the context of COVID-19 pandemic.

OBJECTIVES: Industries have made claims on the effectiveness of a disinfection procedure in reducing COVID-19 transmission. This procedure is usually performed by automated dispersion of disinfectant on individuals when they go through a booth. This Health Technology Assessment (HTA) report is a systematic review that synthesizes the evidence on the efficacy and safety of using these booths and provides recommendations to the Ministry of Health to facilitate decision-making regarding the relevance of using this technology. METHODS: A systematic literature review was performed using Pubmed, Web of Science, INAHTA and GIN databases, from inception to June 4, 2020. Three independent reviewers selected eligible studies then extracted and synthesized the evidence. The synthesis was submitted to a multidisciplinary group of experts to provide recommendations. RESULTS: Two scientific papers and a Malaysian HTA report were included in data synthesis. In light of the resources consulted, spraying disinfectants on humans in booths is not effective and can be toxic. Disinfectants are intended for use on surfaces, not on living tissue and spraying disinfectants on the outside of the body does not kill the virus inside an infected person's body. Furthermore, this procedure may increase the risk of neglecting other effective measures. CONCLUSION: It is recommended to prohibit the use of disinfection booths in all structures.

Workplace Homicides in Northern Tunisia: A 15-Year Study (2003-2017).

BACKGROUND: Death in workplaces remains a public health issue. However, data regarding workplace homicides are scarce in most of regions, especially in the Arab world. The aim of our study was to analyze the epidemiological features of workplace homicides in northern Tunisia. MATERIALS AND METHODS: This is a descriptive study with retrospective data collection over a 15-year period (January 2003 to December 2017). RESULTS: We recorded 50 workplace homicide cases. Sex ratio was 49:1 (male/female). The mean age was 41.6 ± 15.13 years. Occupations the most at risk were security guards (odds ratio, 8.25; 95% confidence interval, 4.28-15.91; P < 0.0001) and taxi drivers (odds ratio, 5.61; 95% confidence interval, 2.39-13.18; P < 0.00001). The motive of the aggression was either interpersonal conflict or robbery (47.9% and 43.8%, respectively). Victims working as security guards or taxi drivers were most frequently assaulted by an unknown perpetrator, the motive being robbery. Death was most frequently secondary to blunt trauma (n = 20) or stab wounds (n = 15). CONCLUSIONS: Workplace homicides represent a substantial phenomenon in Tunisia. The application of prevention measures is required based on improving environmental measures targeting, in priority, security guards and taxi drivers.