Characteristics | Frequency (percentage) | |||||
---|---|---|---|---|---|---|
CPRD (UK) | SAIL (Wales) | SMR (Scotland) | ||||
Total | 37,641 | – | 27,782 | – | 6099 | – |
Nation | ||||||
England | 13,075 | (34.74%) | – | – | – | – |
Northern Ireland | 2984 | (7.93%) | – | – | – | – |
Scotland | 12,559 | (33.37%) | – | – | – | – |
Wales | 9023 | (23.97%) | – | – | – | – |
Age categories (5 yearly) | ||||||
15–19 | 2534 | (6.73%) | 1537 | (5.53%) | 422 | (6.92%) |
20–24 | 6604 | (17.54%) | 5360 | (19.29%) | 1147 | (18.81%) |
25–29 | 10,204 | (27.11%) | 8617 | (31.02%) | 1830 | (30.00%) |
30–34 | 10,723 | (28.49%) | 8081 | (29.09%) | 1746 | (28.63%) |
35–39 | 5970 | (15.86%) | 3549 | (12.77%) | 803 | (13.17%) |
40–44 | 1428 | (3.79%) | 603 | (2.17%) | 138 | (2.26%) |
45–49 | 178 | (0.47%) | 35 | (0.13%) | 13 | (0.21%) |
Gravidity | ||||||
1 | 11,480 | (30.50%) | 13,006 | (46.81%) | 1800 | (29.51%) |
2 | 9895 | (26.29%) | 9972 | (35.89%) | 1992 | (32.66%) |
3 | 6734 | (17.89%) | 3252 | (11.71%) | 1105 | (18.12%) |
4 | 4004 | (10.64%) | 1035 | (3.73%) | 580 | (9.51%) |
≥ 5 | 5528 | (14.69%) | 517 | (1.86%) | 618 | (10.13%) |
Missing | – | – | – | – | 4 | (0.07%) |
Ethnicity | ||||||
Asian / South Asiansa | 1261 | (3.35%) | 418 | (1.50%) | 149 | (2.44%) |
Black | 973 | (2.58%) | 178 | (0.64%) | 23 | (0.38%) |
Mixed | 305 | (0.81%) | 121 | (0.44%) | 8 | (0.13%) |
Other | 528 | (1.40%) | 229 | (0.82%) | 91 | (1.49%) |
White | 20,818 | (55.31%) | 17,430 | (62.74%) | 4903 | (80.39%) |
Missing | 13,756 | (36.55%) | 9406 | (33.86%) | 925 | (15.17%) |
BMI (kg/m2) | ||||||
Underweight (< 18.5) | 1217 | (3.23%) | 1287 | (4.63%) | 92 | (1.51%) |
Normal Weight (18.5–24.9) | 14,440 | (38.36%) | 9485 | (34.14%) | 1478 | (24.23%) |
Overweight (25–29.9) | 8075 | (21.45%) | 5658 | (20.37%) | 1010 | (16.56%) |
Obese (30+) | 7178 | (19.07%) | 5372 | (19.34%) | 1279 | (20.97%) |
Missing | 6731 | (17.88%) | 5980 | (21.52%) | 2240 | (36.73%) |
Smoking | ||||||
Non-Smoker | 22,395 | (59.50%) | 10,151 | (36.54%) | 3349 | (54.91%) |
Ex-smoker | 5707 | (15.16%) | 8022 | (28.87%) | 863 | (14.15%) |
Smoker | 8237 | (21.88%) | 6612 | (23.80%) | 1041 | (17.07%) |
Missing | 1302 | (3.46%) | 2997 | (10.79%) | 846 | (13.87%) |
Patient level deprivation quintiles (IMD) | Only available for Englandb | |||||
1, least deprived | 2326 | (17.79%) | 6455 | (23.23%) | 722 | (11.84%) |
2 | 1835 | (14.03%) | 5460 | (19.65%) | 1039 | (17.04%) |
3 | 1878 | (14.36%) | 4779 | (17.20%) | 979 | (16.05%) |
4 | 1853 | (14.17%) | 4032 | (14.51%) | 1253 | (20.54%) |
5, most deprived | 1908 | (14.59%) | 3832 | (13.79%) | 1344 | (22.04%) |
Missing | 3275 | (25.05%) | 3224 | (11.60%) | 762 | (12.49%) |