Table 2.

Serological data based on socio-demographic and socio-economic parameters used for prevalence of H. pylori in Dhamar population.

Parameters		No. of specimens	No. of positive specimens (%)	Statistical values
				X̄	SD	95% CI
						Upper limit	Lower limit
Age group (years)	1. (01–10)	52	04 (7.7)	28	33.9	37.2	18.8
			M: 2	27	35.4	36.6	17.4
			F: 2	27	35.4	36.6	17.4
	2. (11–20)	63	18 (28.6)	40.5	31.8	49.1	31.9
			M: 8	30	38.9	39.6	20.4
			F: 10	31	29.7	38.3	23.7
	3. (21–30)	60	8 (13.3)	34	36.7	43.2	24.0
			M: 3	31.5	40.3	41.7	21.3
			F: 5	32.5	38.9	42.3	22.7
	4. (31–40)	58	10 (17.2)	34	33.9	43.2	24.7
			M: 4	31	38.2	40.8	21.2
			F: 6	32	36.8	41.5	22.5
	5. (41–50)	62	15 (24.2)	38.5	33.2	47.5	29.5
			M: 7	34.5	38.9	44.2	24.8
			F: 8	35	38.2	44.5	25.5
	6. (51–60)	54	9 (16.7)	31.5	31.8	40.1	22.9
			M: 6	30	33.9	39.1	20.9
			F: 3	28.5	36.1	38.1	18.9
	7. (61–70)	60	14 (23.3)	37	32.5	45.8	28.2
			M: 7	33,5	37.5	43	24.0
			F: 7	33.5	37.5	43	23.9
	8. (>71)	51	11 (21.6)	31	28.3	38.7	23.3
			M: 5	28	32.5	36.9	19.1
			F: 6	28.5	31.8	37.2	19.8
	T	460	89 (19.3)	274.5	262.3	345.8	203.2
			M: 43	251.5	294.9	278.4	224.6
			F: 46	253	292.7	279.8	226.2
Sex	M	250	43 (17.2)	146,5	146,4	186.3	106.7
		R: 120	R: 24	72	67.9	90.5	53.5
		U: 13	U: 19	74.5	78.5	95.8	53.2
	F	210	46 (21.9)	128	116.0	159.5	96.5
		R: 95	R: 25	60	49.5	73.5	46.5
		U: 115	U: 21	68	66.5	86.1	49.9
	T	460	89 (19.3)	274.5	262.3	345.8	203.2
Resident	R	215	49 (22.8)	132	117.4	163.9	100.1
		M: 120	M: 24	72	67.9	90.5	53.5
		F: 95	F: 25	60	49.5	73.5	46.5
	U	245	40 (16.3)	142.5	145	181.9	103.1
		M: 130	M: 19	74.5	78.5	95.8	53.2
		F: 115	F: 21	68	66.5	86.1	49.9
	T	460	89 (19.3)	274.5	262.3	345.8	203.2

T : total number; X̄ = sample means (average); SD: standard deviation; CI : confidence interval.