Table 3. Rate ratios for positive mycobacteria cultures per year in US-affiliated Pacific Islands, August 2007–December 2011.

Variable	Unadjusted		Adjusted*
	Rate ratio per year (95% CI)	p value	Rate ratio per year (95% CI)	p value
Negative culture	1 (referent)		1 (referent)
Mycobacterium tuberculosis	0.98 (0.93–1.04)	0.55	0.98 (0.94–1.01)	0.19
Nontuberculous mycobacteria	1.57 (1.43–1.74)	<0.001	1.65 (1.54–1.77)	<0.01

*Adjusted for age, sex, and site.