Table 1.
Sample characteristics
| Mean/Proportion | Sex differences | ||||||
| Variable | Group |
Total Sample (n = 7588)1 |
Men (n = 3709)1 |
Women (n = 3879)1 |
t-test p value | Rank Sum P value2 | |
| Demographic Variables | Social Class | 0.690 | |||||
| % non-manual | 31.67 | 31.46 | 31.88 | ||||
| % manual | 68.33 | 68.54 | 68.12 | ||||
| Ethnicity | 0.371 | ||||||
| % European | 97.37 | 97.20 | 97.53 | ||||
| % Non - European | 2.63 | 2.80 | 2.47 | ||||
| Study Member BMI | age 10 | 0.01 | -0.07 | 0.09 | *0.000 | ||
| age 30 | -0.01 | 0.14 | -0.15 | *0.000 | |||
| Parental B M I | Father | -0.03 | -0.03 | -0.02 | 0.600 | ||
| Mother | -0.03 | -0.04 | -0.02 | 0.377 | |||
| Childhood Emotional Problems | Rutter Emotional score Self Reported Nervousness | 14.41 | 13.66 | 15.11 | *0.000 | *0.000 | |
| % Not at all | 12.07 | 15.05 | 9.27 | ||||
| % Sometimes | 82.02 | 79.60 | 84.29 | ||||
| % Often | 5.91 | 5.35 | 6.44 | ||||
| Self Reported Worrying | *0.000 | ||||||
| % Not at all | 27.09 | 30.53 | 23.86 | ||||
| % Sometimes | 60.25 | 57.91 | 62.45 | ||||
| % Often | 12.66 | 11.57 | 13.69 | ||||
| Psychological Measures | CAROLOC Locus of control | 4.40 | 4.53 | 4.28 | *0.000 | ||
| LAWSEQ self esteem | 3.41 | 3.18 | 3.64 | *0.000 | |||
1Numbers vary slightly as a result of occasional missing data, sample sizes are the same as those listed in table 3.
2Rank Sum P value refers to a Two-sample Wilcoxon rank-sum (Mann-Whitney) test. * significant p value (p < 0.05)