Wheeze |
Persistent wheeze | 43 | 19 (44.2) | | 85 | 29 (34.1) | | 34 | 10 (29.1) |
Occasional | 21 | 7 (33.3) | | 113 | 13 (11.5) | | 27 | 7 (25.9) |
No wheeze | 146 | 23 (15.8) | | 578 | 53 (9.2) | | 141 | 29 (20.6) |
|
Ethnic group |
Scottish (whites) | 34 | 10 (29.4) | | 181 | 18 (9.9) | | 35 | 11 (31.4) |
English (whites) | 69 | 17 (24.6) | | 365 | 39 (10.7) | | 73 | 18 (24.7) |
English (inner city whites) | 28 | 8 (28.6) | | 101 | 16 (15.8) | | 42 | 11 (26.2) |
Afro-Caribbean | 14 | 4 (28.6) | | 47 | 7 (14.9) | | 11 | 3 (27.3) |
Indian subcontinent | 52 | 10 (19.2) | | 68 | 13 (19.1) | | 39 | 3 (7.7) |
Others | 20 | 3 (15.0) | | 25 | 3 (12.0) | | 7 | 1 (14.3) |
|
Mother’s education |
College or university | 37 | 6 (16.2) | | 203 | 17 (8.4) | | 40 | 10 (25.0) |
Secondary education | 104 | 28 (26.9) | | 477 | 57 (12.0) | | 110 | 30 (27.3) |
Primary education or no education | 56 | 13 (23.2) | | 57 | 11 (19.3) | | 39 | 4 (10.3) |
Not known | 20 | 5 (25.0) | | 50 | 11 (22.0) | | 18 | 3 (16.7) |
|
Father’s social class |
Non-manual | 24 | 3 (12.5) | | 179 | 12 (6.7) | | 36 | 5 (13.9) |
Skilled manual | 54 | 13 (24.1) | | 216 | 21 (9.7) | | 61 | 11 (18.0) |
Semi and unskilled manual | 41 | 12 (29.3) | | 125 | 17 (13.6) | | 24 | 5 (20.8) |
Not known | 98 | 24 (24.5) | | 267 | 46 (17.3) | | 86 | 26 (30.2) |
|
Nocturnal enuresis |
At least once a week | 31 | 13 (41.9) | | 73 | 14 (19.2) | | 10 | 3 (30.0) |
Less than once a week | 11 | 4 (36.4) | | 49 | 6 (12.2) | | 9 | 1 (11.1) |
Less than once a month | 14 | 2 (14.3) | | 87 | 10 (11.5) | | 18 | 6 (33.3) |
No enuresis | 157 | 33 (21.0) | | 567 | 63 (11.1) | | 167 | 36 (21.6) |
|
Maternal smoking at home (cigarettes per day) |
No smoking | 132 | 27 (20.5) | | 517 | 56 (10.8) | | 142 | 25 (17.6) |
1–9 | 27 | 6 (22.2) | | 84 | 10 (11.9) | | 17 | 8 (47.1) |
10–19 | 25 | 7 (28.0) | | 100 | 14 (14.0) | | 22 | 4 (18.2) |
⩾20 | 21 | 9 (42.9) | | 43 | 9 (20 .9) | | 23 | 9 (39.1) |
Not known | 12 | 3 (25.0) | | 43 | 7 (16.3) | | 3 | 1 (33.3) |
Total | 221 | 52 (24.0) | | 916 | 96 (12.2) | | 225 | 47 (22.7) |