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Table 2 Socio-demographic characteristics of Bradford primary school children (n = 15,154) some of whom are also Born in Bradford cohort children (n = 5976)

From: Socioeconomic disadvantage and ethnicity are associated with large differences in children’s working memory ability: analysis of a prospective birth cohort study following 13,500 children

Socio-demographic variable Count Percent
Age (years)   
7 5003 32.04
8 6726 43.08
9 3130 20.05
10 295 1.89
Missing 460 2.95
Gender   
Male 7480 49.36
Female 7674 50.64
Missing 0 0
Ethnic group   
Pakistani 6777 44.72
Bangladeshi 447 2.95
Indian 324 2.14
Black or Black British 264 1.74
White British 4137 27.30
Mixed 866 5.71
Gypsy or Irish traveller 168 1.11
White Other 677 4.47
Other 416 2.75
Missing 1078 7.11
Socioeconomic group (BiB only, n = 5976)   
Least deprived and most educated 778 13.02
Employed, not materially deprived 843 14.11
Employed, no access to money 803 13.44
Benefits but coping 1659 27.76
Most deprived 833 13.94
Missing 1060 17.74