Table 1 Basic characteristic of study cohort
From: The influence of childhood asthma on adult height: evidence from the UK Biobank
Characteristic | Exposed group (n = 13,602) | Matched unexposed group (n = 136,008) | pa | Total (n = 149,610) |
|---|---|---|---|---|
Birth year | 0.90 | |||
1936–1950 | 5427 (39.90) | 54,517 (40.08) | 59,944 (40.07) | |
1951–1960 | 4599 (33.81) | 45,941 (33.78) | 50,540 (33.78) | |
1961–1970 | 3576 (26.29) | 35,550 (26.14) | 39,126 (26.15) | |
Sex | 1 | |||
Women | 5760 (42.35) | 57,600 (42.35) | 63,360 (42.35) | |
Men | 7842 (57.65) | 78,408 (57.65) | 86,250 (57.65) | |
Birth weight, g | 0.04 | |||
Mean (SD) | 3360 (650.00) | 3350 (650.00) | 3350 (650.00) | |
Townsend deprivation index | 0.17 | |||
Mean (SD) | − 1.54 (2.98) | − 1.51 (2.96) | − 1.51 (2.96) | |
Educational attainment | < 0.001 | |||
College degree | 5320 (39.11) | 45,885 (33.74) | 51,205 (34.23) | |
A level | 1669 (12.27) | 16,045 (11.80) | 17,714 (11.84) | |
O levels | 2728 (20.06) | 29,878 (21.97) | 32,606 (21.79) | |
CSEs | 753 (5.54) | 8771 (6.45) | 9524 (6.37) | |
NVQ | 875 (6.43) | 9075 (6.67) | 9950 (6.65) | |
Others | 601 (4.42) | 6013 (4.42) | 6614 (4.42) | |
Unknown | 1656 (12.17) | 20,341 (14.96) | 21,997 (14.70) | |
Annual household income, £ | < 0.001 | |||
< 18 000 | 2138 (15.72) | 22,142 (16.28) | 24,280 (16.23) | |
18,000–30,999 | 2773 (20.39) | 27,929 (20.53) | 30,702 (20.52) | |
31,000–51,999 | 3319 (24.40) | 33,270 (24.46) | 36,589 (24.46) | |
52,000–100,000 | 3084 (22.67) | 28,744 (21.13) | 31,828 (21.27) | |
> 100,000 | 904 (6.65) | 7689 (5.65) | 8593 (5.74) | |
Unknown | 1384 (10.17) | 16,234 (11.94) | 17,618 (11.78) | |
Recruitment center | 1 | |||
England | 12,077 (88.79) | 120,759 (88.79) | 132,836 (88.79) | |
Scotland | 855 (6.29) | 8550 (6.29) | 9405 (6.29) | |
Wales | 670 (4.93) | 6699 (4.93) | 7369 (4.93) | |
Use of ICS | < 0.001 | |||
No | 8397 (61.73) | 90,567 (66.59) | 98,964 (66.15) | |
Yes | 3069 (22.56) | 5265 (3.87) | 8334 (5.57) | |
Unknown | 2136 (15.70) | 40,176 (29.54) | 42,312 (28.28) |