Age and Sex Differences in Sputum Smear Microscopy Results for Acid Fast Bacilli in a Tertiary Care Centre, South India

Table 2

Multivariate analysis on low grade positive smears with demographic and illness related factors.

Factors	Unadjusted odds ratio (95% CI)	Adjusted odds ratio (95% CI)
Gender
Male	1.00	1.00
Female	1.57 (1.13 to 2.18)	1.69 (1.19 to 2.39)
Samples obtained from
Tuberculosis suspects	1.00	1.00
Follow-up	4.02 (2.63 to 6.13)	4.52 (2.95 to 6.95)
Age group
15–34 yrs	1.00	1.00
35–54 yrs	0.80 (0.59 to 1.09)	0.86 (0.62 to 1.20)
55–98 yrs	1.31 (0.93 to 1.85)	1.55 (1.07 to 2.23)