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 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 categoriesValue (%)
High (n = 172)Lower middle (n = 172)Rural lower middle (n = 172)Total (n = 516)
6-10n838378244
mean ± SD8.4 ± 1.67.2 ± 1.17.5 ± 1.27.7 ± 1.4
Female43 (51.8)41 (49.4)37 (47.4)121 (49.6)
Male40 (48.2)42 (50.6)41 (52.6)123 (50.4)
11-20n898994272
mean ± SD13.9 ± 2.014.9 ± 2.712.4 ± 1.413.7 ± 2.3
Female68 (76.4)46 (51.7)63 (67.0)177 (65.1)
Male21 (23.6)43 (48.3)31 (33.0)95 (34.9)
Overalln172172172516
mean ± SD11.2 ± 3.311.2 ± 4.410.2 ± 2.810.9 ± 3.6
Female111 (64.5)87 (50.6)100 (58.1)298 (57.8)
Male61 (35.5)85 (49.4)72 (41.9)218 (42.2)