Brief Article
Copyright ©2009 The WJG Press and Baishideng.
World J Gastroenterol. Oct 21, 2009; 15(39): 4932-4937
Published online Oct 21, 2009. doi: 10.3748/wjg.15.4932
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 orcategoriesValue (%)
High (n = 151)Low (n = 151)Total (n = 302)
1-5n8180161
mean ± SD2.8 ± 1.12.4 ± 1.32.6 ± 1.2
Female29 (35.8)32 (40.0)61 (37.9)
Male52 (64.2)48 (60.0)100 (62.1)
21-30n383977
mean ± SD24.0 ± 2.723.9 ± 2.824.0 ± 2.7
Female10 (26.3)14 (35.9)24 (31.2)
Male28 (73.7)25 (64.1)53 (68.8)
> 30n323264
mean ± SD45.6 ± 11.440.3 ± 6.743.0 ± 9.7
Female13 (40.6)8 (25.0)21 (32.8)
Male19 (59.4)24 (75.0)43 (67.2)
Overalln151151302
mean ± SD17.2 ± 18.016.0 ± 15.916.6 ± 17.0
Female52 (34.4)54 (35.8)106 (35.1)
Male99 (65.6)97 (64.2)196 (64.9)