Table 2. Univariate Cox proportional hazards model for IPT abandonment-free survival of children and adolescents with LTBI in the state of Rio de Janeiro, 2002–2009.

VARIABLE	HR	(95%) CI	P
Gender (n = 245)
Female/Male	0.771	0.46–1.27	0.30
Age range (n = 245)
Children (< 10 years old)/ Adolescents (≥10 years old)	1.381	0.70–2.73	0.34
Contact with pulmonary TB (n = 245)
Yes/No	2.521	0.62–10.3	0.20
Contact with index case that was not undergoing anti-TB treatment (n = 202)
Yes/No	7.871	1.08–57.3	0.04
Body weight (percentile) (n = 245)
≥10/<10	1.321	0.41–4.22	0.64
Tuberculin skin test (mm) (n = 236)
≥10/<10	1.401	0.69–2.34	0.31
IPT adverse effects (n = 245)
Yes/No	1.831	0.57–5.84	0.30
HIV serum status (n = 68)
Positive/Negative	0.331	0.76–1.41	0.14
Place of residence (n = 286)
City of Rio de Janeiro/Out of the City of Rio de Janeiro	1.421	0.70–2.89	0.32
Place of residence’s HDI (n = 245)	0.04	0.00–0.42	0.02
Driving distance between place of residence and HMJ (km) (n = 245)	1.02	0.99–1.04	0.06
Number of different transport means from the place of residence to HMJ (n = 245)
≥2/<2	1.291	0.91–1.83	0.14

CI—confidence interval

HDI—human development index

HIV—human immunodeficiency virus

HMJ—Jesus Municipal Hospital

HR—hazard ratio

TB—tuberculosis

IPT—isoniazid preventive therapy