Table 1 Characteristics of the subjects according to quartiles groups for 25(OH)D in subjects
Variables | All (n = 671) | 1stquartile (n = 168) | 2ndquartile (n = 169) | 3rdquartile (n = 167) | 4thquartile (n = 167) | P among groups |
|---|---|---|---|---|---|---|
25(OH) D range (nmol/L) | 12.4-153.0 | 12.4-30.7 | 30.8 -40.5 | 40.6-53.0 | 53.2-153.0 | Â |
Age (ys) | 58.8(7.5) | 57.9(7.4) | 59.5(7.5)a | 58.9(7.0) | 59.0(8.0) | 0.255 |
BMI (kg/m2) | 22.8(2.9) | 22.9(2.9) | 22.8(2.8) | 23.1(3.1) | 22.4(2.8)c | 0.238 |
WHR | 0.853(0.063) | 0.846(0.052) | 0.855(0.061) | 0.847 (0.061) | 0.863(0.074)a,c | 0.042 |
Current smoker, n (%) | 10(1.5%) | 4(2.4%) | 3(1.8%) | 1(0.6%) | 2(1.2%) | 0.572 |
SBP (mmHg) | 120.0(11.1) | 119.7(11.8) | 120.8(11.1) | 120.8(10.3) | 118.7(11.1) | 0.253 |
DBP (mmHg) | 70.4(7.5) | 71.2(7.6) | 70.0(7.2) | 71.3(7.3) | 69.1(7.8)a,c | 0.023 |
ALT (U/L) | 16.9(9.5) | 15.6(7.6) | 16.4(7.2) | 17.6(7.1) | 17.8(7.5)a | 0.107 |
AST (U/L) | 21.1(6.1) | 20.5(6.9) | 20.7(5.5) | 21.4(5.5) | 21.7(6.5) | 0.246 |
TC (mmol/L) | 5.2(0.8) | 5.2(0.8) | 5.3(0.9) | 5.4(0.9) | 5.2(0.7)c | 0.130 |
LDL-c (mmol/L) | 3.0(0.7) | 3.0(0.8) | 3.0(0.7) | 3.1(0.8) | 2.9(0.7)c | 0.096 |
HDL-c (mmol/L) | 1.6(0.4) | 1.6(0.4) | 1.6(0.4) | 1.6(0.4) | 1.6(0.4) | 0.605 |
TG (mmol/L) | 1.4(0.7) | 1.3(0.6) | 1.3(0.6) | 1.4(0.8) | 1.4(0.7) | 0.467 |
FBG (mmol/L) | 4.9(0.3) | 4.9(0.3) | 4.9(0.4) | 4.9(0.3) | 4.9(0.3) | 0.516 |
PPG (mmol/L) | 5.7(1.1) | 5.9(1.1) | 5.5(1.0)a | 5.4(1.0)a | 5.4(0.9)a | <0.001 |
PTH (pg/mL) | 42.2(15.1) | 48.6(16.3) | 42.9(13.6)a | 41.4(14.5)a | 35.7(12.9)a,b,c | <0.001 |
HOMA-IR | 1.4(1.0-1.9) | 1.3(1.0-2.0) | 1.5(1.1-2.0) | 1.5(1.0-2.0) | 1.4(1.0-1.8) | 0.425 |
HOMA-B % | 97.4(72.7-128.6) | 92.1(71.4-127.8) | 98.6(75.6-131.0)a | 102.1(70.8-134.7) | 97.5(73.4-122.9) | 0.1 |
GFR (ml/min per 1.73Â m2) | 96.9(18.9) | 98.3(19.0) | 96.2(19.2) | 97.4(19.8) | 96.0(17.6) | 0.647 |