Once informed consent was obtained, paper-based questionnaires (MBI–HSS and PHQ-9) and a data collection form were self-reported and deposited into sealed, secure collection boxes that were collected by the primary investigator. Data were then recorded in an Excel spreadsheet. The analysed variables included sex, age, ethnicity, relationship status, job position, discipline, number of hours of overtime per week, number of hours remunerated work outside the public service (RWOPS) per week, academic and/or study time per week, hours per week spent on clerical work, psychiatric diagnosis, family history of psychiatric disorder, psychotherapy attendance, psychotropic medication and/or substance use in the past month and lifetime medication and/or substance use. An instrument was not scored if three or more items were missing; therefore, 327 MBI questionnaires and 335 PHQ-9 surveys were scored. Categories with n < 15 were not analysed.
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