Table 3.
Adjusted risk ratios for children being unimmunised against measles, mumps, and rubella by age 3*
| Social characteristics† | %‡ (No) | Adjusted risk ratios‡ for being unimmunised against MMR | P value |
|---|---|---|---|
| Country: | |||
| England | 57 (8595) | 1 | 0.001 |
| Wales | 16 (2125) | 1.24 (0.99 to 1.54) | |
| Scotland | 14 (1716) | 0.88 (0.68 to 1.15) | |
| N Ireland | 13 (1390) | 0.60 (0.43 to 0.84) | |
| No of children in household: | |||
| 1 | 41 (5587) | 1 | 0.001 |
| 2-3 | 52 (7121) | 1.18 (1.02 to 1.38) | |
| ≥4 | 7 (1118) | 1.74 (1.35 to 2.25) | |
| Maternal age at cohort birth: | |||
| 14-19 | 8 (1101) | 1.41 (1.08 to1.85) | <0.001 |
| 20-24 | 17 (2544) | 1.07 (0.86 to1.31) | |
| 25-29 | 28 (3874) | 1 | |
| 30-34 | 30 (4175) | 1.11 (0.91 to1.34) | |
| 35-39 | 15 (1991) | 1.60 (1.32 to1.95) | |
| ≥40 | 2 (293) | 2.34 (1.70 to3.23) | |
| Single parent: | |||
| No | 85 (11 678) | 1 | <0.001 |
| Yes | 15 (2148) | 1.31 (1.07 to 1.60) | |
| Mother’s employment status: | |||
| Full time | 11 (1643) | 1 | <0.001 |
| Part time | 31 (4033) | 1.07 (0.82 to 1.39) | |
| Not employed | 49 (6933) | 1.43 (1.12 to 1.82) | |
| Self employed | 3 (432) | 1.71 (1.18 to 2.47) | |
| On leave | 5 (664) | 0.94 (0.61 to 1.45) | |
| Full time student | 1 (121) | 1.85 (0.98 to 3.47) | |
| Maternal education: | |||
| None | 16 (2477) | 1 | 0.01 |
| Other | 2 (361) | 1.06 (0.68 to 1.66) | |
| GCSE grades D-G | 11 (1502) | 0.81 (0.62 to 1.06) | |
| O level/GCSE grades A*-C | 35 (4664) | 0.98 (0.81 to 1.19) | |
| A/AS level | 9 (1323) | 1.35 (1.01 to 1.80) | |
| Diploma | 9 (1222) | 1.15 (0.87 to 1.54) | |
| Degree | 17 (2277) | 1.41 (1.05 to 1.89) | |
| Ever smoked in pregnancy: | |||
| No | 65 (9004) | 1 | 0.02 |
| Yes | 35 (4822) | 1.22 (1.04 to 1.43) | |
| Sex of child: | |||
| Male | 51 (7016) | 1 | 0.005 |
| Female | 49 (6810) | 0.84 (0.75 to 0.95) | |
*Total No of observations=13 826; data missing for 18 for maternal age, 40 for mother’s employment status, 30 for educational qualification, 60 for ever smoked during pregnancy.
†Variables not significantly adding to model and therefore omitted: household income, household language.
‡Percentages and risk ratios calculated with sample and non-response weights.