House calls by community health workers and public health nurses to improve adherence to isoniazid monotherapy for latent tuberculosis infection: a retrospective study

Table 3 Factors associated with completion of at least 6 months of isoniazid treatment

Risk factor	OR^a	95% CL		AOR^b	95% CL		ARR^c	95% CL^d
Home follow-up^e	3.27	2.62	4.09	2.94	2.33	3.71	1.21	1.18	1.24
9 months of isoniazid	1.50	1.29	1.74	0.88	0.73	1.05	0.97	0.92	1.01
Female	1.04	0.89	1.21
Age categories:
Age<6	6.80	4.11	11.25	5.40	3.19	9.13	1.07	1.06	1.08
Age 6 to <18	2.71	2.23	3.30	2.64	2.10	3.32	1.11	1.09	1.12
Age 18 to <35	ref			ref			ref
Age 35 and older	1.21	1.00	1.45	1.18	0.96	1.44	1.05	0.99	1.10
Patient referral reason:
Correctional/rehabilitation	0.23	0.18	0.31	0.43	0.32	0.57	0.59	0.47	0.71
TST converters/TB contacts^f	1.30	0.99	1.70	1.23	0.93	1.63	1.04	0.98	1.10
Postpartum women	0.44	0.33	0.59	0.64	0.47	0.87	0.80	0.67	0.94
TST+^g from screening	ref			ref			ref
Place of birth:
Africa	1.34	0.72	2.50	1.29	0.67	2.49	1.07	0.87	1.21
Asia	1.60	1.21	2.13	1.62	1.18	2.22	1.09	1.03	1.14
Europe	1.83	1.03	3.25	1.93	1.06	3.53	1.10	1.01	1.16
Latin America	1.17	0.91	1.52	1.25	0.93	1.67	1.06	0.98	1.13
Unknown	0.95	0.62	1.45	1.06	0.67	1.68	1.02	0.87	1.14
USA	ref			ref			ref

^aAnalysis by logistic regression.
^bAdjusted OR. Multivariate model included: type of follow-up, regimen, age (categories), patient referral reason, and place of birth.
^cAdjusted Risk Ratio, calculated from adjusted OR.
^dAdjusted Risk Ratio 95% confidence limits, calculated from adjusted OR.
^eHome-based follow-up with public health nurses and community health workers.
^fTuberculin skin test converters or contacts of cases with active tuberculosis.
^gTST+: Tuberculin skin test positive.

ISSN: 1471-2458