Table 1 Baseline characteristics of the study population according to the hs-CRP/HDL-C ratio
Variables | Total (n = 6554) | Q1 (n = 1639) | Q2 (n = 1638) | Q3 (n = 1638) | Q4 (n = 1639) | P |
|---|---|---|---|---|---|---|
Age, years, mean (Q1, Q3) | 57 (51, 63) | 56 (49, 62) | 57 (50, 63) | 57 (51, 64) | 58 (52, 65) | < 0.01 |
Sex, n (%) |  |  |  |  |  | < 0.01 |
 Female | 3471 (52.96) | 928 (56.62) | 869 (53.05) | 831 (50.73) | 843 (51.43) |  |
 Male | 3083 (47.04) | 711 (43.38) | 769 (46.95) | 807 (49.27) | 796 (48.57) |  |
Marital status, n (%) | Â | Â | Â | Â | Â | 0.01 |
 Married | 5911 (90.19) | 1490 (90.91) | 1501 (91.64) | 1471 (89.8) | 1449 (88.41) |  |
 Non-Married | 643 (9.81) | 149 (9.09) | 137 (8.36) | 167 (10.2) | 190 (11.59) |  |
Education level, n (%) | Â | Â | Â | Â | Â | 0.91 |
 Elementary school and below | 4514 (68.87) | 1142 (69.68) | 1124 (68.62) | 1112 (67.89) | 1136 (69.31) |  |
 High school | 1365 (20.83) | 337 (20.56) | 348 (21.25) | 347 (21.18) | 333 (20.32) |  |
 College and higher | 675 (10.3) | 160 (9.76) | 166 (10.13) | 179 (10.93) | 170 (10.37) |  |
Location of residence, n (%) |  |  |  |  |  | < 0.01 |
 Urban | 6135 (93.61) | 1571 (95.85) | 1522 (92.92) | 1529 (93.35) | 1513 (92.31) |  |
 Rural | 419 (6.39) | 68 (4.15) | 116 (7.08) | 109 (6.65) | 126 (7.69) |  |
Smoking status, n (%) |  |  |  |  |  | < 0.01 |
 Never | 4051 (61.81) | 1058 (64.55) | 1037 (63.31) | 988 (60.32) | 968 (59.06) |  |
 Former smoker | 461 (7.03) | 90 (5.49) | 106 (6.47) | 122 (7.45) | 143 (8.72) |  |
 Current smoker | 2042 (31.16) | 491 (29.96) | 495 (30.22) | 528 (32.23) | 528 (32.21) |  |
Drinking status, n (%) | Â | Â | Â | Â | Â | 0.02 |
 None of these | 4277 (65.26) | 1042 (63.58) | 1030 (62.88) | 1087 (66.36) | 1118 (68.21) |  |
 Drinks, but less than once a month | 553 (8.44) | 142 (8.66) | 138 (8.42) | 145 (8.85) | 128 (7.81) |  |
 Drinks more than once a month | 1724 (26.3) | 455 (27.76) | 470 (28.69) | 406 (24.79) | 393 (23.98) |  |
Sleep duration, hours, mean (Q1, Q3) | 7 (5, 8) | 7 (5, 8) | 6.75 (5, 8) | 7 (5, 8) | 7 (5, 8) | 0.86 |
Developed heart problems, n (%) |  |  |  |  | < 0.01 | |
 No | 6044 (92.22) | 1529 (93.29) | 1530 (93.41) | 1489 (90.9) | 1496 (91.28) |  |
 Yes | 510 (7.78) | 110 (6.71) | 108 (6.59) | 149 (9.1) | 143 (8.72) |  |
Developed stroke, n (%) |  |  |  |  | < 0.01 | |
 No | 6230 (95.06) | 1575 (96.1) | 1566 (95.6) | 1557 (95.05) | 1532 (93.47) |  |
 Yes | 324 (4.94) | 64 (3.9) | 72 (4.4) | 81 (4.95) | 107 (6.53) |  |
Developed CVD, n (%) |  |  |  |  | < 0.01 | |
 No | 5768 (88.01) | 1473 (89.87) | 1467 (89.56) | 1422 (86.81) | 1406 (85.78) |  |
 Yes | 786 (11.99) | 166 (10.13) | 171 (10.44) | 216 (13.19) | 233 (14.22) |  |
SBP (mmHg), mean (Q1, Q3) | 126 (114, 140) | 122 (112, 137) | 124 (113, 138) | 127 (115, 141) | 129 (116, 145) | < 0.01 |
DBP (mmHg), mean (Q1, Q3) | 74 (67, 83) | 73 (66, 81) | 74 (67, 82) | 75 (68, 83) | 76 (69, 84) | < 0.01 |
TG (mg/dl), mean (Q1, Q3) | 100 (72.57, 141.6) | 83.19 (63.72, 113.28) | 99.12 (72.57, 135.4) | 109.74 (78.76, 153.99) | 115.05 (80.54, 164.61) | < 0.01 |
Uric acid (mg/dl), mean (Q1, Q3) | 4.24 (3.54, 5.08) | 3.92 (3.32, 4.67) | 4.10 (3.46, 5.00) | 4.38 (3.68, 5.20) | 4.56 (3.78, 5.40) | < 0.01 |
LDL-C (mg/dl), mean (Q1, Q3) | 114.43 (94.72, 135.70) | 111.73 (92.78, 132.41) | 113.66 (95.10, 137.15) | 118.30 (97.52, 139.18) | 113.66 (92.40, 134.92) | < 0.01 |
Glucose (mg/dl), mean (Q1, Q3) | 101.34 (93.96, 110.52) | 99.72 (92.7, 107.64) | 101.34 (94.14, 110.16) | 101.7 (94.14, 110.52) | 102.78 (95.22, 114.03) | < 0.01 |
HDL-C (mg/dl), mean (Q1, Q3) | 50.65 (41.75, 60.7) | 59.54 (51.03, 69.39) | 51.42 (44.07, 60.7) | 47.94 (40.21, 56.83) | 44.07 (36.34, 52.58) | < 0.01 |
hs-CRP (mg/l), mean (Q1, Q3) | 0.94 (0.51, 1.92) | 0.37 (0.29, 0.46) | 0.69 (0.56, 0.84) | 1.28 (1.05, 1.60) | 3.45 (2.41, 6.03) | < 0.01 |
hs-CRP/HDL-C, mean (Q1, Q3) | 0.02 (0.01, 0.04) | 0.01 (0.00, 0.01) | 0.01 (0.01, 0.02) | 0.03 (0.02, 0.03) | 0.08 (0.05, 0.13) | < 0.01 |