Table 1 Baseline characteristics classified according to subsequent onset of diabetes mellitus.

From: Impact of weight changes on the incidence of diabetes mellitus: a Korean nationwide cohort study

  New-onset diabetes mellitus P
No (n = 48656) Yes (n = 2749)
Age (years, %)    <0.001
20–39 22177 (45.6) 653 (23.8)  
40–64 24831 (51.0) 1874 (68.2)  
≥65 1648 (3.4) 222 (8.1)  
Male (%) 34002 (69.9) 2072 (75.4) <0.001
BMI (kg/m2)    
2002 23.4 ± 2.9 25.4 ± 3.0 <0.001
2003a 23.5 ± 2.9 25.5 ± 3.2 <0.001
2004 23.5 ± 2.9 25.3 ± 3.1 <0.001
2005b 23.6 ± 2.8 25.5 ± 3.2 <0.001
2006 23.6 ± 2.9 25.4 ± 3.1 <0.001
SBP (mmHg) 122.7 ± 14.9 129.9 ± 15.7 <0.001
DBP (mmHg) 77.2 ± 10.1 81.4 ± 10.3 <0.001
FBG (mg/dL) 91.5 ± 14.1 114.5 ± 34.3 <0.001
TC (mg/dL) 194.2 ± 35.2 207.2 ± 38.7 <0.001
Smoking (%)    <0.001
No 27153 (63.6) 1442 (60.1) 0.002
Past 3238 (7.6) 189 (7.9)  
Current 12277 (28.8) 768 (32.0)  
Alcohol (%)    0.003
No & <1/week 32105 (68.1) 1748 (65.5)  
≥1 time/week 15016 (31.9) 921 (34.5)  
Exercise    <0.001
No 21769 (45.7) 1214 (45.4)  
≤4 times/week 22729 (47.7) 1210 (45.3)  
≥5 times/week 3163 (6.6) 248 (9.3)  
Low income (%)c 4026 (8.3) 311 (11.3) <0.001
HTN (%) 9257 (19.0) 1091 (39.7) <0.001
Dyslipidemia (%) 5296 (10.9) 604 (22.0) <0.001
Family Hx. of HTN (%) 4393 (10.0) 270 (10.8) 0.154
Family Hx. of stroke (%) 2474 (5.6) 140 (5.6) 0.976
Family Hx. of CAD (%) 1232 (2.8) 62 (2.5) 0.383
Family Hx. of DM (%) 3241 (7.3) 278 (11.1) <0.001
Family Hx. of cancer (%) 6164 (13.9) 324 (12.9) 0.182
  1. Data are expressed as mean ± standard deviation, or number (percentage), unless otherwise indicated. BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; FBG, fasting blood glucose; TC, total cholesterol; Hx, history; HTN, hypertension; CAD, coronary artery disease; DM, diabetes mellitus. an = 24512, bn = 25427. cLow income was defined as those bottom 20% of incomes.