Table 4.

Estimated odds ratios (ORs) of factors associated with the prevalence oflight and at least moderate intensity of infection obtained from hierarchical cumulative logit model adjusted for measurement errorfrom data collected on5624 people living in 50 villages of Samar Province, the Philippines, 2003–2004.

Variable		OR* (95% Bayesian credible interval)
Sex	Age group
Male	≤ 10 years	Reference
	>10–16 years	6.10 (3.86 – 9.28)
	>16–40 years	8.76 (6.03 – 12.47)
	>40 years	3.53 (2.37 – 5.15)
Female	≤ 10 years	Reference
	>10–16 years	8.59 (4.74 – 14.28)
	>16–40 years	5.98 (3.53 – 9.61)
	>40 years	3.46 (2.02 – 5.55)
Age group	Sex
≤ 10 years	Female	Reference
	Male	2.31 (1.40 – 3.61)
>10–16 years	Female	Reference
	Male	1.66 (1.01 – 2.61)
>16–40 years	Female	Reference
	Male	3.39 (2.32 – 4.80)
>40 years	Female	Reference
	Male	2.37 (1.54 – 3.58)
Occupation
Works most of the time on a rice farm		Reference
Works sometimes on a rice farm		1.32 (0.82 – 2.02)
Works on a farm but never on a rice farm		0.42 (0.15 – 0.87)
Does not work on a farm		0.55 (0.30 – 0.90)
Does not work on a rice farm, may work on another type of farm		0.52 (0.37 – 0.72)
Irrigation
Rain-fed		Reference
Irrigated		1.41 (0.50 – 3.21)

OR*: the OR compares individuals at least lightly infected (>0 epg) to individuals not infected (0 epg) and individuals moderately or heavily infected (>100 epg) to individuals lightly infected or not infected (0–100 epg).