Table 3.

The effect of the participant's characteristics on the probability of seroconversion status using crude and adjusted odds ratio; Sistan-va-Baluchestan Province, I.R. Iran.

Variables	SeronegativeNo (%)	SeropositiveNo (%)	Crude Odds Ratio	Adjusted Odds Ratio*	P-value
Height for Age Z-score **
≤ −2.0	6 (27.27)	16(72.73)	4.9 (16.1–1.4)	5.6 (1.7–18.2)	0.004*
> −2.0	14 (7.04)	185 (92.96)
Mother's Level of Education (years)
0–9 years	11 (5.79)	179 (94.21)	0.2 (0.05–0.5)	0.2 (0.06–0.4)	0.000*
> 9 years	9 (26.47)	25 (73.53)

^*P-value based on Wald test from logistic regression analysis; coefficients reported based on modeling by logistic regression analysis and ‘age’ in months.

^**A z-score is the number of standard deviations (SD) below or above the reference median value. Anthropometric indices (Height for Age Z-score(HAZ); Weight for Height Z-score (WHZ) and Weight for Age Z-score (WAZ)) were calculated using the Epinut 2.0 (EpiInfo library by Chris D. Smith; CDC Division of Surveillance and Epidemiology, USA; EpiInfo-6.04 software package).