Factors Related To the Incidence of Pulmonary TB in Rural Communities in South Lampung, Indonesia: A Case-Control Study

Indonesia is ranked second in the world with the highest number of TB cases after India. The trend in the case detection rate of tuberculosis cases for all types per 100,000 population in Lampung Province, Indonesia, during 2016-2020 tends to increase. This research aims to analyze factors related to the incidence of pulmonary TB. This case-control study with a sample of 58 respondents (29 in the case group and 29 in the control group) was conducted in the work area of one of the public health centers in South Lampung Regency, starting September-October 2023, using purposive sampling. The research instrument consists of a questionnaire sheet. Data analysis used Chi-square and logistic regression tests. The results of the study showed that the factors associated with the incidence of pulmonary TB in this study area were age (OR= 3.90; 95% CI = 2.28-6.65), nutritional status (OR= 3.72; 95% CI = 1, 23-11, 16), economic status (OR= 4, 22; 95% CI = 1, 40-12, 65), home hygiene (OR= 6, 89; 95% CI = 2, 17- 21.80), smoking habits (OR: 4.71, 95% CI = 1.48-15.03), and the history of pulmonary TB in the immediate family (OR: 3.57, 95% CI = 1.12-11 .37). The dominant factors associated with the incidence of pulmonary TB in this area are economic status (OR= 34.31; 95% CI= 1.56-753.26) and history of pulmonary TB in the immediate family (OR= 37.67; 95% CI = 1.75-809.26). It is necessary to provide education on risk factors for the incidence of tuberculosis, especially about reducing close contact between TB patients and family members, for example, by wearing masks and not throwing away TB patient waste.