Table 4

Univariable and multivariable HRs and 95% CIs between air pollution (estimated from land use regression models) and TB from the Cox proportional hazards analysis (no. of active TB cases: 149)

PollutantActive TB, univariableActive TB, multivariableCulture-confirmed TB, multivariable
HR (95% CI)HR* (95% CI)HR* (95% CI)
PM2.5 (10 μg/m3)0.95 (0.63 to 1.43)0.91 (0.60 to 1.38)0.97 (0.59 to 1.60)
PM10 (10 μg/m3)0.85 (0.56 to 1.27)0.88 (0.55 to 1.40)0.83 (0.47 to 1.46)
NO2 (10 ppb)0.94 (0.66 to 1.35)0.97 (0.67 to 1.39)0.98 (0.64 to 1.53)
NOx (10 ppb)1.03 (0.92 to 1.16)1.04 (0.92 to 1.16)1.04 (0.91 to 1.20)
  • *Adjusted for sex, age, body mass index, education, marital status, alcohol use, smoking status, betel nut use, personal history of TB, history of TB in family, and median annual income.

  • NO2, nitrogen dioxide; NOx, nitrogen oxides; PM10: particulate matter 10 μm or less in aerodynamic diameter; PM2.5, particulate matter 2.5 μm or less in aerodynamic diameter; TB, tuberculosis.