Table 1

Participant characteristics by QRISK2 category (% totals may not sum up due to rounding)

VariablesQRISK2 Score category: n(%) or median (IQR)*Total
<10%, n=1210%–20%, n=192>20%, n=476
Age62 (61, 63)63 (62, 66)67 (64, 70)65 (63, 69)
Female (vs male)12 (100)71 (37.0)178 (37.4)261 (38.4)
Ethnicity
 White11 (91.7)137 (71.4)412 (86.6)560 (82.4)
 Black (African or Caribbean)0 (0)32 (16.7)41 (8.6)73 (10.7)
 Other1 (8.3)23 (12.0)23 (4.4)47 (6.9)
Highest level of education
 Left school at or before age 155 (41.7)76 (39.6)276 (58.0)357 (52.5)
 CSEs, O-levels or equivalent2 (16.7)22 (11.5)41 (8.6)65 (9.6)
 A-levels or equivalent1 (8.3)24 (12.5)42 (8.8)67 (9.9)
 Further education0 (0)14 (7.3)19 (4.0)33 (4.9)
 Bachelor degree3 (25.0)26 (13.5)52 (10.9)81 (11.9)
 Further higher degree1 (8.3)23 (12.0)40 (8.4)64 (9.4)
IMD quintile
 1 (most deprived)5 (41.7)88 (45.8)276 (58.0)369 (54.3)
 25 (41.7)78 (40.62)147 (30.1)230 (33.8)
 30 (0)3 (1.56)13 (2.7)16 (2.4)
 40 (0)0 (0)1 (0.2)1 (0.2)
 5 (least deprived)0 (0)0 (0)0 (0)0 (0)
Smoking status
 Current smoker (vs former)2 (16.7)112 (58.4)376 (79.0)490 (72.1)
 Years smoked (years)45 (42–27)45 (43, 48)49 (45, 52)47 (44, 51)
 Average smoking intensity (cigs/day)10 (7–18)15 (10, 20)20 (12, 20)20 (10, 20)
Lung function
 FEV1 (% predicted)89 (78.5, 106)84 (69, 100)81 (63, 94)81 (66, 96)
 FEV/FVC (%)66 (62, 77)70 (65, 76)67 (60, 74)68 (61, 75)
Other cardiovascular risk factors
 On hypertensive treatment0 (0)34 (17.7)196 (41.2)230 (33.8)
 Family history of heart disease1 (8.3)54 (28.12)233 (49.0)288 (42.4)
 History of diabetes0 (0)0 (0)83 (17.4)83 (12.2)
 BMI (kg/m2)22.9
(19.8, 30.2)
25.5
(22.1, 28.6)
26.1
(23.1–29.3)
25.9
(22.8, 29.2)
 Systolic BP (mm Hg)114
(100, 121)
129
(117, 138)
139
(128, 152)
135
(125, 148)
 Diastolic BP (mm Hg)73 (70, 75)82 (75, 87)84 (77, 91)83 (76, 90)
  • BMI, body mass index; BP, blood pressure; IMD, Index of Multiple Deprivation.