Table 1 Summary of baseline characteristics of the study population according to AIP quartile group
| Â | AIP quartiles | P-value | |||
|---|---|---|---|---|---|
Q1(-1.40,-0.16) | Q2(-0.15,0.05) | Q3(0.05–0.25) | Q4(0.25–1.41) | ||
No. of subjects | 3855 | 3852 | 3858 | 3856 | Â |
Age, years | 48.00 (37.00–59.00) | 51.00 (39.00–61.00) | 52.00 (42.00–61.00) | 52.00 (42.00–61.00) | < 0.001 |
Sex |  |  |  |  | < 0.001 |
Male | 1835 (47.60%) | 2416 (62.72%) | 2743 (71.10%) | 3015 (78.19%) | Â |
Female | 2020 (52.40%) | 1436 (37.28%) | 1115 (28.90%) | 841 (21.81%) | Â |
Height, cm | 164.65 (8.22) | 166.26 (8.44) | 167.29 (8.33) | 168.45 (8.03) | < 0.001 |
Weight, kg | 62.50 (10.64) | 68.29 (11.16) | 71.63 (11.59) | 74.67 (11.80) | < 0.001 |
BMI, kg/m2 | 22.98 (3.04) | 24.63 (3.14) | 25.51 (3.11) | 26.22 (3.06) | < 0.001 |
SBP, mmHg | 123.21 (17.63) | 127.44 (17.57) | 129.08 (17.46) | 130.27 (17.33) | < 0.001 |
DBP, mmHg | 75.30 (10.81) | 77.96 (11.10) | 79.72 (11.09) | 81.05 (10.94) | < 0.001 |
FPG, mmol/L | 5.90 (0.29) | 5.93 (0.30) | 5.98 (0.33) | 6.01 (0.34) | < 0.001 |
TC, mmol/L | 4.79 (0.89) | 4.99 (0.91) | 5.11 (0.93) | 5.28 (0.98) | < 0.001 |
TG, mmol/L | 0.75 (0.60–0.90) | 1.21 (1.06–1.40) | 1.72 (1.51-2.00) | 2.90 (2.35–3.81) | < 0.001 |
HDL-C, mmol/L | 1.53 (1.36–1.71) | 1.38 (1.23–1.54) | 1.26 (1.11–1.42) | 1.08 (0.95–1.27) | < 0.001 |
LDL-C, mmol/L | 2.72 (2.31–3.17) | 2.91 (2.48–3.37) | 2.99 (2.54–3.46) | 2.88 (2.43–3.42) | < 0.001 |
ALT, U/L | 16.30 (12.30–23.00) | 21.00 (15.00-29.50) | 24.00 (17.40–35.10) | 29.00 (20.50–42.60) | < 0.001 |
AST, U/L | 21.90 (18.00–26.00) | 23.45 (19.72–28.28) | 24.00 (20.60-29.17) | 26.40 (21.90–32.10) | < 0.001 |
BUN, mmol/L | 4.87 (4.10–5.72) | 4.90 (4.12–5.80) | 4.89 (4.12–5.74) | 4.86 (4.10–5.70) | 0.174 |
Cr, umol/L | 67.00 (57.00-79.50) | 72.80 (61.00–83.00) | 75.00 (63.80–85.00) | 75.50 (65.20–85.00) | < 0.001 |
Family history of diabetes | 94 (2.44%) | 102 (2.65%) | 89 (2.31%) | 99 (2.57%) | 0.785 |
Smoking status | Â | Â | Â | Â | 0.252 |
Current | 320 (8.30%) | 308 (8.00%) | 324 (8.40%) | 358 (9.28%) | Â |
Past | 65 (1.69%) | 63 (1.64%) | 63 (1.63%) | 68 (1.76%) | Â |
Never | 908 (23.55%) | 869 (22.56%) | 877 (22.73%) | 940 (24.38%) | Â |
Not recorded | 2562 (66.46%) | 2612 (67.81%) | 2594 (67.24%) | 2490 (64.57%) | Â |
Drinking status | Â | Â | Â | Â | 0.095 |
Current | 51 (1.32%) | 47 (1.22%) | 56 (1.45%) | 61 (1.58%) | Â |
Past | 243 (6.30%) | 199 (5.17%) | 224 (5.81%) | 241 (6.25%) | Â |
Never | 999 (25.91%) | 994 (25.80%) | 984 (25.51%) | 1064 (27.59%) | Â |
Not recorded | 2562 (66.46%) | 2612 (67.81%) | 2594 (67.24%) | 2490 (64.57%) | Â |