Prevalence of Hidradenitis Suppurativa in Dhaka, Bangladesh: A hospital-based study
Description
This study was an initiative of the Global Hidradenitis Suppurativa Atlas (GHiSA) to see the prevalence of hidradenitis suppurativa in Dhaka city of Bangladesh as a part of global prevalence of Hidradenitis suppurativa. The study was done with same methodology to ensure uniformity across the study sites. This was a mono-center study carried out at the Outpatient Department (OPD) of pediatrics, obstetrics, internal medicine, and other departments (excluding dermatology), of the Bangabandhu Sheikh Mujib Medical University Hospital, Dhaka, Bangladesh. Participants were enrolled from 15th April to 15thDecember 2022 consecutively, but due to the variable processing time, an element of convenience sampling was present. Informed consent was obtained prior to study participation. The English version of questionnaire was translated into Bangla by two volunteers who are fluent in both English and Bangla and data was collected by trained research assistants. The trained research assistants approached the potential respondents and explained the purpose of the study, while also stressing the anonymity of data. Patients from all over the country take service from BSMMU, which is the highest referral hospital, situated in the capital Dhaka. The city is situated in the central part of the country and its population is more than 23 million. Healthy persons accompanying patients to the BSMMU OPD were therefore considered as a representative population of the whole country. This study was approved by the Institutional Review Board (BSMMU/2022/4085; Date 23-4-2022) prior to study initiation. This study followed the Stard Flow diagram for diagnostic accuracy. From the OPD a total of 2500 apparently healthy accompanying adults were approached for study participation, and none refused participation. Data was collected from 2500 respondents but among these, 123 were incomplete and therefore excluded. Finally, a total of 2377 participants were included for statistical analysis. Three HS patients were confirmed by dermatologists. A total of 23 screen-negative persons were randomly selected for clinical examination to verify the outcome. None of them had HS. The point prevalence in the final sample was 0.13 % (CI: 0.04%- 0.37%). There was a significant difference in the gender distribution in the sample. All (100.0%) the HS patients were male. The median age of the HS patients was 45 years. The median BMI for the HS patients was 28 kg/m2. The diagnostic accuracy of the screening questionnaire is presented in table 1. The sensitivity was 0.1 (3/3), specificity was 0.1 (23/23), positive predictive value PPV was 0.1 (3/3) and negative predictive value PPV was 0.1 (23/23).
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The study has not received any financial support.