Table 2 Baseline characteristics of clinical information from CHARLS
|  | Total (n = 12,932) | Q1 (n = 3,.233) | Q2 (n = 3,233) | Q3 (n = 3,233) | Q4 (n = 3,233) | P |
|---|---|---|---|---|---|---|
Age, years | 58.64 (9.78) | 58.04 (9.65) | 58.44 (9.61) | 58.67 (9.79) | 59.43 (10.03) |  < 0.001 |
Female | 6789 (52.50) | 1756 (54.31) | 1675 (51.81) | 1677 (51.87) | 1681 (52.00) | 0.125 |
Education |  |  |  |  |  |  < 0.001 |
Less than high school | 10,611 (82.18) | 2761 (85.61) | 2657 (82.26) | 2601 (80.50) | 2592 (80.35) | Â |
High school graduate or higher | 2301 (17.82) | 464 (14.39) | 573 (17.74) | 630 (19.50) | 634 (19.65) | Â |
Marital status | Â | Â | Â | Â | Â | 0.028 |
Not married or living with a partner | 1540 (11.92) | 349 (10.81) | 380 (11.76) | 384 (11.88) | 427 (13.22) | Â |
Married or living with a partner | 11,384 (88.08) | 2880 (89.19) | 2852 (88.24) | 2849 (88.12) | 2803 (86.78) | Â |
Smoking | 5042 (39.18) | 1171 (36.38) | 1249 (38.75) | 1303 (40.48) | 1319 (41.12) |  < 0.001 |
Drinking | 3311 (25.70) | 824 (25.61) | 867 (26.88) | 798 (24.76) | 822 (25.57) | 0.276 |
Hypertension | 3050 (24.43) | 537 (16.95) | 661 (21.12) | 830 (26.72) | 1022 (33.19) |  < 0.001 |
Dyslipidemia | 1164 (9.40) | 193 (6.18) | 238 (7.68) | 308 (9.96) | 425 (13.87) |  < 0.001 |
Chronic Kidney Disease | 790 (6.28) | 208 (6.56) | 195 (6.21) | 187 (5.95) | 200 (6.39) | 0.778 |
Diabetes mellitus | 706 (5.63) | 124 (3.92) | 123 (3.93) | 194 (6.20) | 265 (8.53) |  < 0.001 |
Coronary Heart Disease | 1458 (11.60) | 324 (10.21) | 327 (10.42) | 374 (11.91) | 433 (13.89) |  < 0.001 |
Stroke | 283 (2.24) | 47 (1.48) | 53 (1.68) | 75 (2.38) | 108 (3.44) |  < 0.001 |
Cancer | 127 (1.01) | 27 (0.85) | 31 (0.98) | 37 (1.17) | 32 (1.02) | 0.640 |
SBP, mmHg | 130.00 (116.00, 145.00) | 125.00 (113.00,140.00) | 128.00 (115.00,143.00) | 132.00 (118.00,148.00) | 133.00 (119.00,148.00) |  < 0.001 |
BMI, kg/m^2 | 23.28 (20.97, 25.96) | 21.88 (20.04,24.01) | 22.97 (20.79,25.39) | 23.94 (21.60,26.49) | 24.77 (22.11,27.63) |  < 0.001 |
TC, mg/dL | 188.66 (165.46, 214.18) | 181.70 (159.67,205.67) | 186.87 (164.69,210.31) | 190.98 (167.78,216.50) | 195.62 (170.10,224.23) |  < 0.001 |
HDL-C, mg/dL | 49.10 (40.54, 59.15) | 57.60 (49.10,67.65) | 51.03 (43.30,59.92) | 46.78 (39.43,54.90) | 40.98 (34.41,50.26) |  < 0.001 |
LDL-C, mg/dL | 112.11 (91.24, 134.92) | 112.11 (92.28,133.38) | 113.27 (92.40,135.31) | 114.05 (93.94,137.24) | 109.02 (85.44,134.15) |  < 0.001 |
TG, mg/dL | 107.08 (76.11, 158.41) | 74.34 (58.41,93.81) | 101.78 (77.88,133.63) | 125.67 (92.93,170.80) | 170.80 (112.39,258.42) |  < 0.001 |
WBC, 10^3/μL | 6.23 (2.08) | 5.64 (1.61) | 5.97 (1.69) | 6.35 (1.82) | 6.94 (2.76) |  < 0.001 |
Platelets, 10^3/μL | 211.27 (74.05) | 205.49 (70.51) | 209.27 (72.93) | 212.84 (78.17) | 217.50 (73.86) |  < 0.001 |
eGFR, mL/min/1.73 m2 | 92.40 (87.84, 98.08) | 93.36 (88.65,98.96) | 92.48 (87.88,98.54) | 92.12 (87.62,97.70) | 91.92 (87.25,97.05) |  < 0.001 |
Uric acid, mg/dL | 4.37 (3.62, 5.26) | 3.99 (3.34,4.76) | 4.25 (3.55,5.10) | 4.54 (3.78,5.44) | 4.77 (3.94,5.72) |  < 0.001 |
HbA1c, % | 5.20 (4.90, 5.50) | 5.10 (4.80,5.40) | 5.20 (4.90,5.50) | 5.20 (4.90,5.60) | 5.30 (5.00,5.70) |  < 0.001 |
FPG, mg/dL | 101.70 (93.60, 113.04) | 98.82 (91.89,106.87) | 100.62 (92.34,109.91) | 102.06 (93.78,113.94) | 107.10 (97.02,124.37) |  < 0.001 |
hsCRP, mg/L | 1.07 (0.57, 2.24) | 0.45 (0.31,0.65) | 0.74 (0.54,1.09) | 1.39 (0.99,2.04) | 3.74 (2.19,7.07) |  < 0.001 |
RC, mg/dL | 20.88 (12.37, 32.86) | 9.66 (5.03,14.69) | 18.94 (13.51,26.29) | 25.52 (18.17,35.14) | 36.68 (23.97,56.44) |  < 0.001 |
RCII | 2.23 (0.88, 6.01) | 0.45 (0.25,0.66) | 1.43 (1.13,1.81) | 3.51 (2.82,4.54) | 12.69 (8.38,23.94) |  < 0.001 |
lnRCII | 0.82 (1.56) | − 1.10 (1.00) | 0.35 (0.26) | 1.27 (0.28) | 2.76 (0.82) |  < 0.001 |
All-cause deaths | 609 (4.71) | 115 (3.56) | 123 (3.80) | 166 (5.13) | 205 (6.34) |  < 0.001 |