Table 1.

Demographic characteristics of study participants in Al Hudaydah, Yemen.

Characteristics		Cases (n=104)	Controls (n=208)
Area of residence, n (%)
	Al Hali	81 (77.9)	162 (77.9)
	Al Hawak	15 (14.4)	30 (14.4)
	Al Meina	8 (7.7)	16 (7.7)
Gender, n (%)
	Female	57 (54.8)	114 (54.8)
	Male	47 (45.2)	94 (45.2)
Age (years), median (range)		20 (5-80)	23 (5-85)
Occupation, n (%)
	Employed	6 (5.8)	9 (4.3)
	Unemployed	53 (51.0)	117 (56.3)
	Student	45 (43.3)	82 (39.4)