Table 2.

Association of residential M. avium complex and M. avium complex pulmonary disease by point-of-use source

Household site	N (Positive)*		Unadjusted Analysis		Age-adjusted Analysis†		Fully Adjusted Analysis‡
	Cases	Control Subjects	Odds Ratio	95% CI	Odds Ratio	95% CI	Odds Ratio	95% CI
Bathroom faucet	40 (15)	48 (11)	1.8	0.7–4.5	1.7	0.6–4.5	1.8	0.6–4.9
Kitchen faucet	40 (15)	48 (14)	1.2	0.5–2.6	1.1	0.5–2.5	1.2	0.5–2.8
Shower aerosols	39 (10)	46 (6)	2.6	0.7–10.4	2.9	0.7–12.5	2.9	0.7–12.4
Indoor soil	30 (7)	38 (4)	1.9	0.5–6.4	1.3	0.3–5.0	1.1	0.3–4.5
Outdoor soil	39 (8)	46 (8)	1.0	0.3–3.1	0.9	0.3–2.8	0.9	0.3–2.8

Definition of abbreviations: CI = confidence interval; M. avium = Mycobacterium avium.

^*Some case–control pairs had more than one control. Positives were samples with at least nontuberculous mycobacteria isolate.

^†Adjusted for age > 80 years.

^‡Adjusted for age, race, and education level.