Table 1.

Prevalence of Cryptosporidium in humans with sex, age and water source

		Total (N)	Positive (n)	(n/N (%)	Odd ratio	95% Conf. Interval	chi2	Pr > chi2
Sex	Male	153	12	7.84%	0.25	0.08 - 0.76	11.717	0.0006***
	Female	188	25	13.30%	0.333	0.11 - 0 .98
Age	0-10yrs	203	23	11.33%	0.077	0.02 - 0.37	16.674	0.0018**
	11yrs-20yrs	54	4	8.66%	0.333	0 .11 - 0.98
	21yrs-40yrs	73	7	9.59%	0.6	0.13 - 2.69
	41yrs-70yrs	11	3	27.27%	0.2	0.61 - 0.65
Water Source	River	237	30	12.65%	0.333	0.11 - 0.98	16.865	0.0006***
	Tap	76	5	6.58%	1	0
	Borehole	20	2	10%	0.25	0.08 - 0.76

Significance codes: 0

^’***’0.001

^‘**’0.01 ‘*’ 0.05 ‘.’ 0.1 ’ ’ 1