Table 1.
Characteristics | Households (n=314) |
---|---|
Parent's age (years): | |
≤24 | 100 (32) |
≥25 | 214 (68) |
Status: | |
Living with partner | 267 (85) |
Not living with partner | 47 (15) |
No of children: | |
1-3 | 267 (85) |
≥4 | 47 (15) |
Self reported ethnic group: | |
White (United Kingdom or European) | 256 (82) |
Other | 58 (18) |
Tenure: | |
Owner occupied | 148 (47) |
Rented or other | 166 (53) |
Parent's educational achievement: | |
No qualifications | 72 (23) |
Qualifications | 242 (77) |
No of rooms per person: | |
≤1 | 103 (33) |
>1 | 204 (65) |
Missing data | 7 (2) |
Social class of household: | |
Non-manual | 70 (22) |
Manual | 131 (42) |
Part time worker | 14 (4.5) |
Unemployed | 97 (31) |
Missing data | 2 (0.5) |
Total household income per annum: | |
<£10 000 | 148 (47) |
≥£10 000 | 166 (53) |
Mean age of infants studied | 12 weeks |
Mean (SD) cotinine to creatinine ratio (ng/ml:mmol/l); range (n=216) | 30.3 (73.0); 1-726 |