Table 1.
Participant characteristics
| All | White British | Pakistani | Other | |
|---|---|---|---|---|
| n = 1558 | n = 589 | n = 757 | n = 212 | |
| Mother | ||||
| Age at delivery: mean (Std. Dev.) (missing data, n = 15) | 27.5 (5.74) | 26.9 (6.11) | 27.7 (5.15) | 28.3 (5.78) |
| Country of Birth: n (%) (missing data, n = 0) | ||||
| UK | 970 (62.3) | 581 (98.6) | 311 (41.1) | 78 (36.8) |
| Pakistan | 441 (28.3) | 0 | 438 (57.9) | 3 (1.4) |
| Other | 147 (9.4) | 8 (1.4) | 8 (1.1) | 131 (61.8) |
| BMI at registration (~10 weeks gestation): mean (Std. Dev.) (missing data, n = 60) | 25.9 (5.74) | 26.9 (6.18) | 25.2 (5.41) | 25.5 (5.22) |
| Neighbourhood material deprivation (IMD 2010): n (%) (missing data, n = 0) | ||||
| Quintile 1: Most deprived | 1060 (68.0) | 311 (52.8) | 604 (79.8) | 145 (68.4) |
| Quintile 2 | 286 (18.4) | 133 (22.6) | 111 (14.7) | 42 (19.8) |
| Quintile 3 | 154 (9.9) | 95 (16.1) | 37 (4.9) | 22 (10.4) |
| Quintile 4 | 34 (2.2) | 30 (5.1) | 2 (0.3) | 2 (0.9) |
| Quintile 5: Least deprived | 24 (1.5) | 20 (3.4) | 3 (0.4) | 1 (0.5) |
| IMD Score: Mean (Std. Dev.) | 42.9 (17.5) | 37.2 (19.1) | 46.7 (14.8) | 45.2 (17.8) |
| Self-reported financial situation: n (%) (missing data, n = 8) | ||||
| Comfortable | 409 (26.4) | 137 (23.3) | 209 (27.8) | 63 (29.9) |
| All-right | 648 (41.8) | 254 (43.3) | 304 (40.4) | 90 (42.6) |
| Difficult | 493 (31.8) | 195 (33.3) | 240 (31.9) | 58 (27.5) |
| Mother non-specific psychological stress score when child was 12 months old (higher = greater stress; range 0–24) (missing data n = 285) | 3.28 (3.89) | 3.38 (3.90) | 3.20 (3.89) | 3.26 (3.82) |
| Percentage score 4 or more | 35.6% | 36.2% | 35.1% | 35.3% |
| Mother TV attitude when child was 24 months old: mother does not agree that it is important their child does not watch too much TV (missing data, n = 10) | 23.3% | 21.3% | 25.2% | 21.5% |
| Hours TV is on in house: Mean (Std. Dev.) (missing data, n = 364) | 7.8 (4.0) | 7.3 (3.9) | 8.5 (4.0) | 7.1 (4.1) |
| Whether mother restricts child TV viewing: n (%) (missing data, n = 377) | ||||
| Never | 506 (42.8%) | 147 (33.6%) | 306 (51.8%) | 53 (34.6%) |
| Occasionally | 370 (31.3%) | 145 (33.2%) | 172 (29.1%) | 53 (34.6%) |
| Everyday | 305 (25.8%) | 145 (33.2%) | 113 (19.1%) | 47 (30.7%) |
| No previous children (missing data, n = 35) | 39.0% | 47.3% | 31.3% | 43.5% |
| Child | ||||
| BMI 24 month: mean (Std. Dev.) (missing data, n = 10) | 16.6 (1.22) | 16.8 (1.05) | 16.4 (1.28) | 16.6 (1.34) |
| BMI 24 months Z-score: mean (Std. Dev.) | 0.00 (1.00) | 0.04 (0.55) | −0.05 (1.07) | 0.07 (1.64) |
| Sex: n(%) (missing data, n = 0) | ||||
| Male | 758 (48.6) | 283 (48.0) | 367 (48.5) | 108 (50.9) |
| Female | 800 (51.4) | 306 (52.0) | 390 (51.5) | 104 (49.1) |
BMI Body Mass Index, IMD Index of Multiple Deprivation