Table 4. The statistically significant results of the multivariate analysis of potential predictors of Cryptosporidium infection among the 276 aboriginal children.

Variable	Parameter estimate (B)	s.e. of estimate	Odds ratio and (95% confidence interval)	P
Constant	−1·140	0·501	–	0·000
Large household size (more than seven members)	0·764	0·201	2·15 (1·25–5·02)	0·025