Covid 19: Risk factors and development of pulmonary TB in household contacts, Lima, Peru

OBJECTIVE: is to determine the risk factors associated with developing tuberculosis in household contacts of patients with pulmonary tuberculosis in the epidemiological context of the Covid 19 pandemic. METHODS: It is descriptive, analytical and cross-sectional, the population of index cases with tuberculosis is 53, and a sample of 59 household contacts of a health center of the Ministry of Health, in Lima, in the months of September and October 2021, two pre-established surveys were applied, one applied in the index case, and another to household contacts; for the association of risk factors, the Mantel and Haenszel Chi-square test was used. RESULTS: in the sociodemographic risk, shared housing, with a significance of 0.000; family support, with a significance of 0.006, considered P values < 0.05. Clinical factor, 27.5 % (11) of the index cases have type 2 diabetes mellitus, and 7.5 % (3) have malnutrition, and 7.5 % have alcoholism, 5 % have HIV/AIDS, arterial hypertension, and lack of application of isoniazid preventive therapy (IPT) are associated with a significance level of 0.001, (P < 0.05). Environmental risk, home lighting, hygiene and ventilation are associated with a significance level of 0.017, 0.002 and 0.011 respectively, with P < 0.05. index cases, more than 28 % were infected, 69.8 % were vaccinated; in contacts more than 13 % were infected, and vaccinated more than 47 % CONCLUSION: shared housing, family support, associated diseases, lack of implementation of isoniazid preventive therapy (PTZ), home lighting, hygiene and ventilation were the most relevant associated with the development of tuberculosis. Tuberculosis is a global health crisis, attention should focus on controlling tuberculosis in areas where it continues to develop. Given that migration factors are a prevalent condition in the Americas, the focus must address health risk factors to improve health outcomes and care for TB patients in Peru.