This was a cross-sectional study to determine the factors associated with patient, diagnostic and treatment delay and default among pulmonary TB patients in MOH clinics in the state of Selangor in 2017. Data were collected from 732 newly diagnosed adult pTB cases (age 18 years and above). Face-to-face interviews of the patients were conducted with the aid of a pre-tested, structured questionnaire. Information in the questionnaire was organized into several sections: (1) sociodemographic characteristics of the patients, consisting of age, gender, education level, employment, marital status, residential area, personal income, monthly household income, nationality, and number of households in the same house; (2) Lifestyle behaviours (smoking status and alcohol consumption); (3) Knowledge about TB and stigma; (4) Laboratory and clinical findings; (5) Chronology of symptom onset and treatment. One manuscript has been produced from this study and one under review by journal. Chee Cheong K, et al. Gender Differences in Factors Associated with the Total Delay in Treatment of Pulmonary Tuberculosis Patients: A Cross-Sectional Study in Selangor, Malaysia. International Journal of Environmental Research and Public Health. 2022; 19(10):6258. https://doi.org/10.3390/ijerph1910625