To support the global restart of elective surgery, data from an international prospective cohort study of 8492 patients (69 countries) was analysed using artificial intelligence (machine learning techniques) to develop a predictive score for mortality in surgical patients with SARS-CoV-2. We found that patient rather than operation factors were the best predictors and used these to create the COVIDsurg Mortality Score (https://covidsurgrisk.app). Our data demonstrates that it is safe to restart a wide range of surgical services for selected patients.

Aim. The aim of the study was to determine the ultrasonic gallbladder wall thickness in normal adult Nigerians so as to create standards for defining gallbladder abnormalities in Nigerians. Method. Four hundred adults comprising 228 (57%) women and 172 (43%) men aged 16 - 78 years, who had normal clinical history and physical findings, were recruited. The gallbladder wall thickness was obtained in the supine, prone and right anterior oblique positions. Differences in gallbladder wall thickness were determined using the chi-square test, while the relationship between the ultrasound-measured gallbladder wall thickness and the subjects’ age, sex, height and weight were analysed using the Pearson product moment correlation. Normal ranges and related statistics were estimated and tabulated according to age group and sex. Results. The mean age of the subjects was 32±13.2 years. The mean gallbladder wall thickness range was 1.8 - 2.8 mm±0.5mm. The thickness range for females was 1.7 - 2.7 mm±0.5 mm, and that for males was 1.9 - 2.9 mm±0.5 mm. There was a statistically significant difference (p

Background: Sub-Saharan Africa region remains heavily plagued by HIV/AIDS with recent information suggesting that sex between men is a significant contributor to the spread of this infection. It was against this backdrop that this study was conducted to examine the sexual behaviors of HIV-infected men who have sex with men (MSM) in Jos, Plateau state, North Central Nigeria. Materials and Methods: A cross-sectional study was conducted among 114 HIV-infected MSM 18 years and above using a quantitative method of data collection. Respondent-driven sampling technique was employed in sampling the study participants, and EpiInfo statistical software version 7 was used for the data analysis. Results: The mean age of the respondents was 26.0 ± 5.4 years with condom use in the last anal sex being 77 (67.5%), while majority (83.3%) of the respondents was adjudged to have been engaged in risky sexual behaviors. Conclusions: This study has brought to light a significant level of risky sexual behaviors among HIV-infected MSM with condom use, multiple same sexual engagement, transactional sex, and bisexual concurrency as areas of possible interventions.

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