Table 2. Adjusted multivariable logistic regression analyses of correlates of NTM infection by age group among patients visiting two tuberculosis treatment sites in northern Nigeria from August 2010 to July 2011.

		Age >35 years			Age ≤35 years
	OR	95% CI	p	OR	95% CI	p
HIV infection	1.40	[0.65–3.00]	0.39	3.76	[1.72–8.22]	0.00
Harmattan season	2.74	[1.42–5.30]	0.00	1.79	[0.82–3.91]	0.14
BMI >19.2	0.59	[0.30–1.15]	0.11
Alcohol intake				2.80	[1.14–6.87]	0.02

NTM: non-tuberculous mycobacterial infection.

BMI: Body Mass Index.