Table 3.
Univariate and multivariate Logistic regression models for EBV ⩾ 4·74 vs. <4·74, adjusted for household socio-economic position (Model 1), Model 1 plus area environment (Model 2), Model 2 plus home environment (overcrowding, temperature in the baby room) (Model 3), Model 3 plus housing tenure (Model 4)
| Characteristic | Univariate OR (95% CI)a | Model 1a (95% CI) | Model 2a (95% CI) | Model 3a (95% CI) | Model 4a (95% CI) |
|---|---|---|---|---|---|
| Age | 1 (1,1)*** | 1 (1,1)** | 1 (1,1)* | 1 (1,1)* | 1 (1,1)* |
| Sex | |||||
| Boy | 1 | 1 | 1 | 1 | 1 |
| Girl | 1·07 (0·98–1·18)† | 1·06 (0·96,1·18) | 1·06 (0·95,1·18) | 1·06 (0·95,1·18) | 1·06 (0·95,1·17) |
| Income | |||||
| >0·75 and ⩽1 | 1 | 1 | 1 | 1 | 1 |
| >0·5 and ⩽0·75 | 1·02 (0·89–1·17)† | 0·95 (0·82–1·09) | 0·94 (0·82–1·09) | 0·93 (0·80–1·08) | 0·92 (0·79–1·07) |
| >0·25 and ⩽0·5 | 1·30 (1·13–1·51)*** | 1·10 (0·93–1·31) | 1·10 (0·92–1·31) | 1·07 (0·90–1·28) | 1·02 (0·85–1·24) |
| ⩽0·25 | 1·26 (1·06–1·51)* | 1·00 (0·80–1·26) | 1·00 (0·79–1·25) | 0·97 (0·77–1·22) | 0·91 (0·71–1·16) |
| Mother education | |||||
| Higher/degree | 1 | 1 | 1 | 1 | 1 |
| A/As/S level | 1·18 (0·97–1·44)† | 1·13 (0·93–1·38) | 1·14 (0·93–1·39) | 1·14 (0·93–1·39)† | 1·13 (0·93–1·39) |
| GCSE | 1·14 (0·98–1·32)° | 1·04 (0·88–1·22) | 1·03 (0·88–1·22) | 1·03 (0·87–1·21) | 1·02 (0·87–1·20) |
| No qualification | 1·46 (1·22–1·74)*** | 1·20 (0·98–1·47)° | 1·18 (0·96–1·44)† | 1·16 (0·94–1·42)† | 1·14 (0·92–1·40) |
| Parent social class | |||||
| I | 1 | 1 | 1 | 1 | 1 |
| II | 1·19 (0·99–1·43)* | 1·13 (0·92–1·38) | 1·12 (0·92–1·37) | 1·11 (0·91–1·36) | 1·10 (0·90–0.34) |
| III | 1·29 (1·03–1·61)* | 1·13 (0·89–1·44) | 1·14 (0·90–1·45) | 1·11 (0·88–1·41) | 1·10 (0·87–1·40) |
| IV | 1·16 (0·96–1·40)† | 1·11 (0·90–1·36) | 1·11 (0·90–1·36) | 1·09 (0·89–1·34) | 1·06 (0·87–1·31) |
| V | 1·38 (1·18–1·6)*** | 1·24 (1·02–1·50)* | 1·23 (1·01–1·49)* | 1·21 (0·99–1·47)° | 1·15 (0·94–1·41)† |
| Never worked – absent – missing | 1·39 (1·13–1·71)** | 1·24 (0·96–1·61)† | 1·22 (0·94–1·58)† | 1·20 (0·92–1·55)† | 1·14 (0·88–1·48) |
| Urban rural area | |||||
| Large Urban | 1 | 1 | 1 | 1 | |
| Towns | 0·78 (0·62–0·98)* | 0·81 (0·65–1·02)° | 0·81 (0·65–1·02)° | 0·82 (0·65–1·03)° | |
| Rural | 0·80 (0·65–0·99)* | 0·84 (0·68–1·05)† | 0·84 (0·68–1·05)† | 0·84 (0·67–1·05)† | |
| Number of room per person | |||||
| No overcrowding | 1 | 1 | 1 | ||
| Overcrowding | 1·28 (1·13–1·45)*** | 1·14 (1·00–1·31)° | 1·10 (0·96–1·27)† | ||
| Temperature in the baby's room | |||||
| Very warm/warm/neither warm nor cold | 1 | 1 | |||
| Very cold/cold | 1·06 (0·85–1·32) | 0·99 (0·79–1·25) | 0·98 (0·78–1·24) | ||
| Housing tenure | |||||
| Own | 1 | 1 | |||
| Rent privately | 1·17 (0·95–1·43)† | 1·05 (0·84–1·31) | |||
| Social housing | 1·39 (1·21–1·58)*** | 1·16 (0·98–1·38)° | |||
| Other | 1·53 (1·24–1·89)*** | 1·35 (1·07–1·70)* |
***P ⩽ 0.001, **P ⩽ 0.01, *P ⩽ 0.05, °P < 0.10 and †P < 0.20.
a
Adjusted for IgG and for sample weights and MCS complex survey design.