Community-based cross-sectional seroprevalence study of hepatitis A in Bangladesh

Table 1 Group definition based on age and socioeconomic status classification

Socioeconomic status	Definition	Age group (yr)					Overall (n)
		1-5	6-10	11-20	21-30	> 30
High	High socio-economic group of subjects from Popular Diagnostic Centre	81	NA	NA	38	32	151
High	High socio-economic group of subjects from urban private schools	NA	83	89	NA	NA	172
Lower middle	Lower middle socio-economic group of subjects from urban government schools	NA	83	89	NA	NA	172
Rural lower middle	Lower middle socio-economic group of subjects from rural schools	NA	78	94	NA	NA	172
Low	Low socio-economic group of subjects from Dhaka Shishu Hospital	80	NA	NA	39	32	151
Total		161	244	272	77	64	818

NA: Not available; n: Total number of subjects.

Table 2 Summary of demographic characteristics by socioeconomic status for the age groups 1-5 yr, 21-30 yr, > 30 yr and overall (n = 302)

Age group(yr)	Variables orcategories	Value (%)
		High (n = 151)	Low (n = 151)	Total (n = 302)
1-5	n	81	80	161
	mean ± SD	2.8 ± 1.1	2.4 ± 1.3	2.6 ± 1.2
	Female	29 (35.8)	32 (40.0)	61 (37.9)
	Male	52 (64.2)	48 (60.0)	100 (62.1)
21-30	n	38	39	77
	mean ± SD	24.0 ± 2.7	23.9 ± 2.8	24.0 ± 2.7
	Female	10 (26.3)	14 (35.9)	24 (31.2)
	Male	28 (73.7)	25 (64.1)	53 (68.8)
> 30	n	32	32	64
	mean ± SD	45.6 ± 11.4	40.3 ± 6.7	43.0 ± 9.7
	Female	13 (40.6)	8 (25.0)	21 (32.8)
	Male	19 (59.4)	24 (75.0)	43 (67.2)
Overall	n	151	151	302
	mean ± SD	17.2 ± 18.0	16.0 ± 15.9	16.6 ± 17.0
	Female	52 (34.4)	54 (35.8)	106 (35.1)
	Male	99 (65.6)	97 (64.2)	196 (64.9)

n: Total number of subjects.

Table 3 Summary of demographic characteristics by socioeconomic status for the age groups 6-10 yr, 11-20 yr and overall (n = 516)

Age group (yr)	Variables or categories	Value (%)
		High (n = 172)	Lower middle (n = 172)	Rural lower middle (n = 172)	Total (n = 516)
6-10	n	83	83	78	244
	mean ± SD	8.4 ± 1.6	7.2 ± 1.1	7.5 ± 1.2	7.7 ± 1.4
	Female	43 (51.8)	41 (49.4)	37 (47.4)	121 (49.6)
	Male	40 (48.2)	42 (50.6)	41 (52.6)	123 (50.4)
11-20	n	89	89	94	272
	mean ± SD	13.9 ± 2.0	14.9 ± 2.7	12.4 ± 1.4	13.7 ± 2.3
	Female	68 (76.4)	46 (51.7)	63 (67.0)	177 (65.1)
	Male	21 (23.6)	43 (48.3)	31 (33.0)	95 (34.9)
Overall	n	172	172	172	516
	mean ± SD	11.2 ± 3.3	11.2 ± 4.4	10.2 ± 2.8	10.9 ± 3.6
	Female	111 (64.5)	87 (50.6)	100 (58.1)	298 (57.8)
	Male	61 (35.5)	85 (49.4)	72 (41.9)	218 (42.2)

n: Total number of subjects.