Table 4. Body mass index (BMI) and risk of incident tuberculosis (TB) infection among household contacts over 19 years of age.
| Multivariate HRa (95% CI) N = 2016 | p value | |
|---|---|---|
| BMI 18.5 to < 25 kg/m2 | Reference | |
| BMI 25 to < 30 kg/m2 | 1.09 (0.93–1.28) | 0.30 |
| BMI 30 to < 35kg/m2 | 1.19 (0.96–1.48) | 0.11 |
| BMI ≥ 35 kg/m2 | 1.22 (0.89–1.67) | 0.21 |
| p trend = 0.07 |
HR, Hazard Ratio.
a Adjusted for age, sex, BMI categories, comorbid disease (heart disease, high blood pressure, asthma, kidney disease, use of steroids or chemotherapy or immunosuppressant, any other self-reported chronic illness), number of BCG scars, isoniazid preventive therapy, heavy alcohol consumption, tobacco use, HIV status, socioeconomic status, self-reported DM, index smear status, index cavitary disease and index heavy alcohol use.