Weighted percentages and sample sizes for total singletons interviewed (n=13 681), consenting (n=12 872) and non-consenting singletons (n=809), adjusted and unadjusted ORs (95% CI) and p values for predictors of consent
| Weighted % (n) | Unadjusted regressions | Adjusted regression | |||||
|---|---|---|---|---|---|---|---|
| Interviewed | Consenting | Non-consenting | OR (95% CI) | p Value | OR (95% CI) | p Value | |
| All | 100.0 (13681) | 94.5 (12872) | 5.5 (809) | ||||
| Biological | |||||||
| Child's gender | |||||||
| Male | 51.4 (6950) | 94.7 (6541) | 5.3 (409) | 1.07 (0.90 to 1.28) | 0.442 | 1.10 (0.91 to 1.32) | 0.318 |
| Female | 48.6 (6731) | 94.4 (6331) | 5.6 (400) | 1 | 1 | ||
| Child's ethnicity | |||||||
| White | 85.5 (11373) | 95.1 (10745) | 4.9 (628) | 1 | 1 | ||
| Mixed | 3.2 (367) | 91.9 (345) | 8.1 (22) | 0.59 (0.32 to 1.08) | 0.57 (0.30 to 1.10) | 0.093 | |
| Indian | 1.9 (339) | 91.8 (316) | 8.2 (23) | 0.58 (0.35 to 0.96) | 0.089 | 0.91 (0.45 to 1.84) | 0.793 |
| Pakistani/Bangladeshi | 4.7 (869) | 92.1 (794) | 7.9 (75) | 0.61 (0.45 to 0.82) | 0.001 | 1.06 (0.67 to 1.70) | 0.779 |
| Black or Black British | 3.2 (446) | 92.8 (411) | 7.2 (35) | 0.67 (0.41 to 1.09) | 0.103 | 0.64 (0.36 to 1.14) | 0.126 |
| Other | 1.4 (186) | 92.4 (173) | 7.6 (13) | 0.63 (0.32 to 1.26) | 0.190 | 1.06 (0.49 to 2.26) | 0.884 |
| Child's BMI | |||||||
| Under/normal weight | 79.9 (10582) | 94.9 (10011) | 5.1 (571) | 1 | 0.313 | 1 | 0.802 |
| Overweight/obese | 20.1 (2759) | 94.4 (2583) | 5.6 (176) | 0.90 (0.74 to 1.10) | 0.97 (0.79 to 1.20) | ||
| Social | |||||||
| Mother's age at birth (years) | |||||||
| 14–19 | 8.5 (1005) | 93.9 (940) | 6.1 (65) | 0.87 (0.61 to 1.26) | 0.468 | 1.01 (0.69 to 1.48) | 0.962 |
| 20–29 | 45.4 (6103) | 94.7 (5752) | 5.3 (351) | 1.02 (0.87 to 1.19) | 0.844 | 1.14 (0.95 to 1.36) | 0.159 |
| 30–39 | 43.4 (6184) | 94.6 (5817) | 5.4 (367) | 1 | 0.215 | 1 | 0.983 |
| ≥40 | 2.7 (389) | 93.0 (363) | 7.0 (26) | 0.75 (0.48, 1.18) | 1.01 (0.59 to 1.73) | ||
| Maternal occupation | |||||||
| Managerial and professional | 22.5 (3173) | 95.4 (3018) | 4.6 (155) | 1 | 1 | ||
| Intermediate | 12.9 (1746) | 95.7 (1666) | 4.3 (80) | 1.08 (0.73 to 1.58) | 0.707 | 1.21 (0.80 to 1.85) | 0.371 |
| Small employers and own account workers | 5.8 (751) | 95.5 (716) | 4.5 (35) | 1.03 (0.68 to 1.55) | 0.885 | 1.15 (0.74 to 1.77) | 0.533 |
| Lower supervisory and technical | 2.7 (345) | 95.7 (328) | 4.3 (17) | 1.08 (0.62 to to 1.88) | 0.797 | 1.26 (0.67 to to 2.38) | 0.467 |
| Semiroutine and routine | 18.1 (2385) | 94.8 (2248) | 5.2 (137) | 0.88 (0.64 to 1.21) | 0.433 | 1.03 (0.73 to 1.46) | 0.847 |
| Non-employed | 37.9 (4993) | 93.3 (4628) | 6.7 (365) | 0.68 (0.53 to 0.88) | 0.003 | 0.79 (0.60 to 1.07) | 0.119 |
| Maternal academic qualification | |||||||
| Degree(s)/postgraduate diplomas | 18.6 (2756) | 95.5 (2623) | 4.5 (133) | 1 | 1 | ||
| Higher education/teaching qualifications/diplomas | 11.4 (1592) | 94.9 (1512) | 5.1 (80) | 0.88 (0.63 to 1.22) | 0.441 | 0.81 (0.56 to 1.17) | 0.265 |
| A/AS/S-levels | 9.2 (1299) | 94.9 (1231) | 5.1 (68) | 0.88 (0.61 to 1.25) | 0.467 | 0.84 (0.56 to 1.26) | 0.390 |
| O-levels/GCSE grades A-C | 32.0 (4219) | 94.6 (3958) | 5.4 (261) | 0.83 (0.63 to 1.10) | 0.191 | 0.81 (0.57 to 1.13) | 0.217 |
| GCSE grades D-G | 11.0 (1396) | 94.2 (1308) | 5.8 (88) | 0.77 (0.52 to 1.13) | 0.182 | 0.72 (0.47 to 1.10) | 0.129 |
| Other academic qualifications | 2.5 (358) | 93.3 (335) | 6.7 (23) | 0.66 (0.39 to 1.10) | 0.109 | 0.73 (0.43 to 1.24) | 0.247 |
| None of these | 15.3 (2057) | 93.3 (1902) | 6.7 (155) | 0.66 (0.48 to 0.91) | 0.012 | 0.91 (0.61 to 1.35) | 0.632 |
| Lone parent status | |||||||
| Non-lone parent | 77.3 (10785) | 94.7 (10157) | 5.3 (628) | 1 | 1 | ||
| Lone parent | 22.7 (2896) | 94.0 (2715) | 6.0 (181) | 0.87 (0.72 to 1.05) | 0.151 | 1.01 (0.78 to 1.29) | 0.916 |
| Number of children in the household | |||||||
| 1 | 13.3 (1771) | 92.9 (1649) | 7.1 (122) | 0.73 (0.59 to 0.90) | 0.004 | 0.82 (0.64 to 1.05) | 0.110 |
| 2–3 | 72.9 (9886) | 94.8 (9325) | 5.3 (561) | 1 | 1 | ||
| ≥4 | 13.8 (2024) | 95.0 (1898) | 5.0 (126) | 1.05 (0.82 to 1.35) | 0.695 | 1.30 (0.99 to 1.71) | 0.062 |
| Household language | |||||||
| English only | 89.8 (11786) | 94.9 (11127) | 5.1 (659) | 1 | 1 | ||
| English and other | 9.6 (1796) | 91.3 (1656) | 8.7 (140) | 0.56 (0.43 to 0.72) | 0.000 | 0.68 (0.46 to 1.00) | 0.052 |
| Non-English speaking | 0.5 (99) | 86.7 (89) | 13.3 (10) | 0.35 (0.14 to 0.89) | 0.027 | 0.45 (0.16 to 1.31) | 0.145 |
| Whether anyone smokes near the child | |||||||
| No | 86.4 (11837) | 94.4 (11126) | 5.6 (711) | 1 | 1 | ||
| Yes | 13.6 (1759) | 95.8 (1672) | 4.2 (87) | 1.37 (1.03 to 1.82) | 0.031 | 1.37 (1.02 to 1.84) | 0.037 |
| Whether mother is in work or not | NA | NA | |||||
| In work or leave | 61.6 (8511) | 95.2 (8077) | 4.8 (434) | 1 | 0.000 | ||
| Not in work or leave | 38.4 (5170) | 93.4 (4795) | 6.6 (375) | 0.71 (0.60 to 0.84) | |||
| Main housing tenure | |||||||
| Own outright to full or part loan/mortgage | 63.1 (8996) | 94.6 (8475) | 5.4 (521) | 1 | 0.577 | 1 | 0.197 |
| Rent from local authority or housing association | 24.9 (3092) | 94.3 (2900) | 5.8 (192) | 0.93 (0.72 to 1.20) | 1.23 (0.90 to 1.70) | ||
| Rent privately | 9.8 (1177) | 95.8 (1118) | 4.2 (59) | 1.30 (0.94 to 1.80) | 0.111 | 1.49 (1.01 to 2.20) | 0.045 |
| Other | 2.2 (277) | 92.3 (258) | 7.7 (19) | 0.68 (0.38 to 1.21) | 0.188 | 1.07 (0.59 to 1.94) | 0.836 |
| Type of accommodation | |||||||
| House or bungalow | 89.9 (12436) | 94.6 (11708) | 5.4 (728) | 1 | 1 | ||
| Flat or maisonette | 9.7 (1175) | 94.5 (1101) | 5.5 (74) | 0.99 (0.70 to 1.41) | 0.952 | 1.05 (0.65 to 1.68) | 0.853 |
| Studio, room, bedsit, other | 0.4 (49) | 99.7 (48) | 0.3 (1) | 17.2 (2.78 to 106.5) | 0.002 | NA | NA |
| Household income | |||||||
| <£10400 | 13.1 (1733) | 92.6 (1603) | 7.5 (130) | 0.56 (0.39 to 0.80) | 0.001 | 0.73 (0.46 to 1.16) | 0.185 |
| £10400–£20800 | 26.8 (3794) | 94.6 (3561) | 5.4 (233) | 0.78 (0.58 to 1.06) | 0.113 | 1.02 (0.71 to 1.49) | 0.896 |
| £20800–£31200 | 23.1 (3234) | 94.4 (3035) | 5.6 (199) | 0.76 (0.57 to 1.00) | 0.052 | 0.99 (0.72 to 1.37) | 0.929 |
| £31200–£52000 | 24.9 (3359) | 95.2 (3183) | 4.8 (176) | 0.88 (0.64 to 1.22) | 0.451 | 1.00 (0.71 to 1.42) | 0.996 |
| >£52000 | 12.2 (1541) | 95.7 (1474) | 4.3 (67) | 1 | |||
| Behavioural | |||||||
| Disability or illness that limits activity | |||||||
| No | 93. 2 (12783) | 94.8 (12066) | 5.2 (717) | 1 | 1 | ||
| Yes | 6.8 (898) | 90.8 (806) | 9.2 (92) | 0.54 (0.41 to 0.71) | 0.000 | 0.65 (0.47 to 0.90) | 0.010 |
| Frequency of sport or exercise | |||||||
| 3 or more days/week | 19.9 (2705) | 95.7 (2575) | 4.4 (130) | 1 | 1 | ||
| 2 days/week | 20.8 (2829) | 95.7 (2693) | 4.3 (136) | 1.02 (0.76 to 1.38) | 0.899 | 1.12 (0.82 to 1.52) | 0.486 |
| 1 day/week | 26.1 (3592) | 94.7 (3383) | 5.4 (209) | 0.80 (0.61 to 1.07) | 0.132 | 0.87 (0.65 to 1.19) | 0.387 |
| Less often or not at all | 33.2 (4485) | 93.1 (4161) | 6.9 (324) | 0.62 (0.46 to 0.82) | 0.001 | 0.77 (0.55 to 1.06) | 0.110 |
| Hours per weekday child watches TV | |||||||
| Less than an hour/not at all | 19.3 (2684) | 94.8 (2524) | 5.2 (160) | 1 | 1 | ||
| 1–3 h | 64.8 (8748) | 94.3 (8227) | 5.7 (521) | 0.91 (0.72 to 1.14) | 0.415 | 0.90 (0.70 to 1.16) | 0.425 |
| 3–5 hours | 11.1 (1462) | 95.9 (1388) | 4.1 (74) | 1.30 (0.92 to 1.83) | 0.136 | 1.37 (0.97 to 1.93) | 0.073 |
| >5 h | 4.8 (711) | 94.9 (669) | 5.1 (42) | 1.02 (0.66 to 1.56) | 0.932 | 1.14 (0.72 to 1.81) | 0.581 |
| Child ever breastfed | |||||||
| No | 33.6 (4394) | 93.6 (4075) | 6.4 (319) | 0.77 (0.64 to 0.93) | 0.006 | 0.88 (0.72 to 1.09) | 0.236 |
| Yes | 66.5 (9287) | 95.0 (8797) | 5.0 (490) | 1 | 1 | ||
| Environmental | |||||||
| Access to garden | |||||||
| No | 7.4 (905) | 95.6 (857) | 4.4 (48) | 1.27 (0.90 to 1.81) | 0.178 | 1.70 (1.01 to 2.85) | 0.045 |
| Yes | 92.6 (12755) | 94.5 (12000) | 5.5 (755) | 1 | 1 | ||
| Ward type | |||||||
| Advantaged | 56.7 (5693) | 95.1 (5408) | 4.9 (285) | 1 | 1 | ||
| Disadvantaged | 37.0 (6326) | 94.0 (5924) | 6.0 (402) | 0.80 (0.62 to 1.05) | 0.103 | 0.89 (0.66 to 1.21) | 0.466 |
| Ethnic | 6.3 (1662) | 92.2 (1540) | 7.8 (122) | 0.60 (0.46 to 0.80) | 0.000 | 0.75 (0.48 to 1.17) | 0.211 |
| Government office region | |||||||
| North East | 3.6 (395) | 93.4 (368) | 6.6 (27) | 0.42 (0.16 to 1.06) | 0.065 | NA | NA |
| North West | 10.8 (1125) | 94.8 (1063) | 5.2 (62) | 0.54 (0.28 to 1.03) | 0.062 | ||
| Yorkshire and the Humberside | 8.9 (1013) | 92.5 (938) | 7.5 (75) | 0.36 (0.18 to 0.73) | 0.005 | ||
| East Midlands | 7.3 (734) | 95.3 (705) | 4.7 (29) | 0.60 (0.27 to 1.37) | 0.226 | ||
| West Midlands | 8.0 (1009) | 95.7 (958) | 4.3 (51) | 0.66 (0.32 to 1.34) | 0.245 | ||
| East of England | 9.3 (971) | 96.7 (935) | 3.3 (36) | 0.86 (0.41 to 1.77) | 0.674 | ||
| London | 11.1 (1403) | 93.7 (1315) | 6.3 (88) | 0.44 (0.23 to 0.85) | 0.015 | ||
| South East | 14.5 (1360) | 94.6 (1288) | 5.4 (72) | 0.52 (0.26 to 1.03) | 0.060 | ||
| South West | 8.2 (766) | 97.1 (745) | 2.9 (21) | 1 | 0.024 | ||
| Wales | 5.1 (1951) | 94.3 (1844) | 5.7 (107) | 0.49 (0.26 to 0.91) | 0.019 | ||
| Scotland | 9.3 (1598) | 94.0 (1499) | 6.0 (99) | 0.46 (0.24 to 0.88) | 0.000 | ||
| Northern Ireland | 4.0 (1354) | 89.3 (1212) | 10.7 (142) | 0.25 (0.13 to 0.46) | |||
| Isle of Man/Channel Islands | 0.02 (2) | 100 (2) | 0 (0) | NA | NA | ||
| Country | |||||||
| England | 64.2 (8786) | 95.0 (8326) | 5.1 (460) | 1 | 1 | ||
| Wales | 14.2 (1945) | 94.2 (1838) | 5.8 (107) | 0.87 (0.65 to 1.15) | 0.313 | 0.97 (0.71 to 1.33) | 0.859 |
| Scotland | 11.6 (1599) | 94.0 (1500) | 6.0 (99) | 0.83 (0.60 to 1.17) | 0.287 | 0.73 (0.51 to 1.03) | 0.077 |
| Northern Ireland | 9.9 (1351) | 89.1 (1208) | 10.9 (143) | 0.43 (0.32 to 0.59) | 0.000 | 0.46 (0.32 to 0.65) | 0.000 |
Frequencies of missing data: ethnicity (101); BMI (340); occupation (288); academic (4); smoking (85); housing tenure (139), accommodation (21); income (20); sport (70); TV (76); garden (21).
BMI, body mass index.