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. 2017 Jan 11;7(1):e012868. doi: 10.1136/bmjopen-2016-012868

Table 4.

Socioeconomic inequalities in socio-emotional difficulty (SED) in the Millennium Cohort Study by maternal academic attainment at ages 3, 5, 7 and 11 (n=15 103; 48 832 observations)

Age 3 Age 5 Age 7 Age 11
Relative inequality: adjusted† prevalence ratios (PR) for SED (95% CIs)
Degree
Diploma 1.5 (1.2 to 1.8) 1.5 (1.1 to 1.9) 1.6 (1.3 to 2.0) 1.3 (1.0 to 1.6)
A Level 1.3 (1.1 to 1.6) 1.8 (1.4 to 2.4)‡ 1.5 (1.1 to 1.9) 1.4 (1.1 to 1.8)
GCSE A*–C 1.9 (1.6 to 2.3) 1.9 (1.5 to 2.4) 1.9 (1.6 to 2.3) 1.7 (1.5 to 2.1)
GCSE D–G 2.7 (2.3 to 3.2) 2.9 (2.2 to 3.7) 2.5 (2.0 to 3.1) 2.1 (1.7 to 2.5)‡
No qualifications 3.1 (2.6 to 3.7) 4 (3.2 to 5.1)‡ 3.1 (2.5 to 3.8) 2.4 (1.9 to 2.9)‡
Absolute inequality: adjusted† prevalence differences (PD) (95% CIs)
Degree
Diploma 5.5 (2.6 to 8.4) 2.4 (0.5 to 4.3)‡ 4.5 (2.3 to 6.7) 2.7 (0.3 to 5.0)
A Level 3.4 (0.7 to 6.2) 4.4 (2.3 to 6.6) 3.3 (0.9 to 5.7) 4.2 (1.2 to 7.1)
GCSE A*–C 10.3 (8.1 to 12.4) 4.8 (3.4 to 6.3)§ 6.6 (4.8 to 8.4)‡ 7.4 (5.4 to 9.4)‡
GCSE D–G 18.8 (15.7 to 22.0) 9.8 (7.4 to 12.2)§ 10.8 (8.0 to 13.6)§ 10.9 (7.7 to 14.0)§
No qualifications 23.1 (19.9 to 26.3) 16.1 (13.5 to 18.7)§ 15.8 (12.9 to 18.7)§ 13.4 (10.2 to 16.7)§

Missing data (n) at age 3, 5, 7, 11 for: SED: 1164, 647,492 528; maternal academic attainment: 110, 100, 88, 69; missing data (n) for maternal age at first live birth: 1359; cohort member ethnicity: 31.

†Adjusted for maternal age at first live birth, child sex and ethnicity.

‡≤0.05, §≤0.001; significance test p value for age PR differences (interaction) and PD differences (pairwise comparisons) (age 3 baseline).

General Certificate of Education Advanced Level, A level; GCSE,General Certificate of Secondary Education.