Table 1 Descriptive statistics of the surveys for all data collection years combined
Variable | Category | NHANES | HSE | SHS |
|---|---|---|---|---|
Sex | Female | 53 (78,954) | 55 (103,818) | 56 (13,593) |
| Â | Male | 47 (69,586) | 45 (85,734) | 44 (10,590) |
Age | 16–29 years | 16 (23,886) | 18 (33,475) | 15 (3556) |
|  | 30–49 years | 23 (33,620) | 35 (65,980) | 35 (8458) |
|  | 50–64 years | 26 (38,089) | 23 (44,216) | 27 (6608) |
| Â | +65 years | 36 (52,945) | 24 (45,881) | 23 (5561) |
Body-mass-index (BMI) [kg/m2] | 10–20 | 5 (7057) | 5 (8931) | 4 (924) |
|  | 21–25 | 24 (34,241) | 35 (62,358) | 31 (6889) |
|  | 26–30 | 32 (45,941) | 38 (68,324) | 38 (8585) |
|  | 31–35 | 21 (31,163) | 16 (27,682) | 19 (4159) |
| Â | +35 | 19 (27,105) | 6 (11,180) | 8 (1849) |
Education | Other qualifications | 51 (74,278) | 55 (104,744) | 50 (11,279) |
| Â | Degree | 19 (27,275) | 16 (31,026) | 25 (5530) |
| Â | No qualification | 30 (43,150) | 28 (53,782) | 25 (5702) |
Currently smoking | No | 80 (111,578) | 69 (84,740) | 59 (8545) |
| Â | Yes | 20 (27,904) | 31 (38,929) | 41 (6042) |
Treated for hypertension | No | 57 (85,065) | 81 (154,040) | 80 (19,301) |
| Â | Yes | 43 (63,030) | 19 (35,422) | 20 (4824) |
Systolic blood pressure [mmHg] |  | 126.57 (20.41) | 131.72 (19.39) | 129.96 (19.17) |
Diastolic blood pressure [mmHg] |  | 69.62 (12.33) | 73.79 (11.92) | 73.79 (11.62) |
Glycated haemoglobin (HbA1c) [%] | Â | 5.92 (1.25) | 5.31 (1.05) | 5.51 (0.76) |
Cholesterol [mmol/L] | Â | 4.94 (1.15) | 5.52 (1.21) | 5.59 (1.17) |
CVD risk scores [%] | Â | 12.55 (12.78) | 11.75 (12.44) | 12.75 (12.89) |
Sample size | Â | 148,540 | 189,552 | 24,183 |