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Major depressive disorder (MDD) or depression is a heterogeneous disease. It is highly prevalent in surgical wards. It can be identified by using Patient Health Questionnaire-9 (PHQ-9). By using the questionnaire, we aim to study the prevalence of depression among surgical patients and explore potential sub-groups of surgical patients among which depression is more prevalent. The structured questionnaire was designed that included questions from the PHQ-9 questionnaire, demographic details,doi:10.5281/zenodo.4530390 fatcat:wua6isk6ljalhilb5ruetm4tzy