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Table 1 Characteristics of participants, stratified by region, age, and sex (N = 63,135)

From: The older, the less potential benefit for type 2 diabetes from weight control

 

Overall

Young & middle-aged

(<  60 years)

The elderly

(≥ 60 years)

Total

Women

Men

Total

Women

Men

Overall

Women

Men

Beijing Chinese

 n

8149

3372

4777

6120

2667

3453

2029

705

1324

 Age (year)

48.2 ± 15.4

41.1 ± 10.1

41.5 ± 9.8

41.1 ± 10.1

40.7 ± 10.6

41.5 ± 9.8

69.5 ± 5.8

69.7 ± 6.1

69.4 ± 5.7

 BMI (kg/m2)

24.4 ± 3.6

22.9 ± 3.4

25.4 ± 3.2

24.3 ± 3.6

22.6 ± 3.3

25.6 ± 3.3

24.6 ± 3.3

24.1 ± 3.6

24.8 ± 3.1

 Waist circumference (cm)

83.1 ± 10.5

76.7 ± 9.5

87.7 ± 8.6

82.2 ± 10.7

75.1 ± 8.6

87.7 ± 8.6

86 ± 9.5

82.8 ± 10.1

87.8 ± 8.7

 FPG (mmol/L)

5.4 ± 1.2

5.2 ± 1.0

5.5 ± 1.3

5.3 ± 1.1

5.1 ± 0.8

5.4 ± 1.2

5.8 ± 1.4

5.7 ± 1.4

5.9 ± 1.4

 Underweight, n, (%)

282 (3.5)

218 (6.5)

64 (1.3)

227 (3.7)

186 (7)

41 (1.2)

55 (2.7)

32 (4.5)

23 (1.7)

 Overweight, n, (%)

3224 (40.8)

906 (26.9)

2318 (48.5)

2359 (38.5)

655 (24.6)

1704 (49.3)

865 (42.6)

251 (35.6)

614 (46.4)

 General obesity, n, (%)

1181 (14.5)

269 (8.0)

912 (19.1)

886 (14.4)

168 (6.3)

718 (20.8)

295 (14.5)

101 (14.3)

194 (14.7)

 Abdominal obesity, n, (%)

2504 (30.8)

648 (19.2)

1956 (40.9)

1779 (29.1)

372 (13.9)

1407 (40.7)

825 (40.7)

276 (39.1)

549 (41.5)

 T2DM, n, (%)

451 (5.5)

98 (2.9)

353 (7.4)

234 (3.8)

45 (1.7)

189 (5.5)

217 (10.7)

53 (7.5)

164 (12.4)

Guangdong Chinese

 n

6914

3812

3102

4508

2595

1913

2406

1217

1189

 Age (year)

52.7 ± 14.7

51.9 ± 14.5

53.7 ± 14.9

44.5 ± 10.5

44.4 ± 10.3

44.5 ± 10.7

68.3 ± 6.7

68.1 ± 6.8

68.5 ± 6.5

 BMI (kg/m2)

23.4 ± 3.5

23.4 ± 3.6

23.3 ± 3.4

23.5 ± 3.5

23.4 ± 3.6

23.6 ± 3.5

23.1 ± 3.5

23.4 ± 3.6

22.8 ± 3.4

 Waist circumference (cm)

80.3 ± 9.9

78.8 ± 9.7

82.2 ± 9.9

79.6 ± 9.9

77.7 ± 9.5

82.2 ± 9.8

81.6 ± 10

81.2 ± 9.9

82.0 ± 10.8

 FPG (mmol/L)

5.6 ± 1.7

5.6 ± 1.7

5.7 ± 1.6

5.5 ± 1.6

5.5 ± 1.6

5.6 ± 1.5

5.9 ± 1.8

5.9 ± 2

5.8 ± 1.7

 Underweight, n, (%)

468 (6.7)

260 (6.8)

208 (6.7)

272 (6.0)

172 (6.6)

100 (5.2)

196 (8.1)

88 (7.2)

108 (9.1)

 Overweight, n, (%)

2060 (29.8)

1110 (29.1)

950 (30.6)

1367 (30.3)

749 (28.9)

618 (32.3)

693 (28.8)

361 (29.7)

332 (27.9)

 General obesity, n, (%)

707 (10.2)

417 (10.9)

290 (9.3)

489 (10.8)

284 (10.9)

205 (10.7)

218 (9.1)

133 (10.9)

85 (7.1)

 Abdominal obesity, n, (%)

1647 (23.8)

965 (25.3)

682 (22.0)

970 (21.5)

555 (21.4)

415 (21.7)

677 (28.1)

410 (33.7)

267 (22.5)

 T2DM, n, (%)

553 (8.0)

278 (7.3)

255 (8.2)

277 (6.1)

144 (5.6)

133 (7)

256 (10.7)

134 (11.0)

122 (10.3)

American

 n

48,072

23,251

24,821

34,803

17,985

16,818

13,269

6836

6433

 Age (year)

45.7 ± 19.2

45.7 ± 18.7

45.8 ± 18.5

36.5 ± 12.3

36.3 ± 12.2

36.7 ± 12.5

69.9 ± 7.3

70.2 ± 7.4

69.7 ± 7.1

 BMI (kg/m2)

28.7 ± 6.8

29.2 ± 7.5

28.3 ± 6.1

28.7 ± 7.1

29.1 ± 7.8

28.2 ± 6.3

29.0 ± 6.1

29.5 ± 6.7

28.5 ± 5.4

 Waist circumference (cm)

97.6 ± 16.3

96.0 ± 16.6

99.3 ± 16.0

96.1 ± 16.8

94.9 ± 17.2

97.5 ± 16.2

101.5 ± 14.414.4

99.0 ± 14.3

104.2 ± 13.9

 FPG (mmol/L)

5.9 ± 2.0

5.8 ± 1.9

6.1 ± 2.1

5.7 ± 1.8

5.5 ± 1.7

5.9 ± 1.9

6.5 ± 2.3

6.4 ± 2.3

6.7 ± 2.3

 Underweight, n, (%)

896 (1.9)

550 (2.2)

346 (1.5)

744 (2.1)

468 (2.6)

276 (1.6)

152 (1.1)

82 (1.2)

70 (1.1)

 Overweight, n, (%)

15,833 (32.9)

7085 (28.5)

8748 (37.6)

10,905 (31.3)

4837 (26.9)

6068 (36.1)

4928 (37.1)

2248 (32.9)

2680 (41.7)

 General obesity, n, (%)

17,015 (35.4)

9655 (38.9)

7360 (31.7)

12,125 (34.8)

6861 (38.1)

5264 (31.3)

4890 (36.9)

2794 (40.9)

2096 (32.6)

 Abdominal obesity, n, (%)

24,796 (53.2)

15,711 (65.6)

9805 (40.1)

16,477 (48.5)

10,704 (61.2)

5773 (35.0)

8319 (66.0)

5007 (77.7)

3312 (53.7)

 T2DM, n, (%)

6818 (14.2)

3284 (13.2)

3534 (15.2)

2337 (6.7)

1085 (6.0)

1252 (7.4)

3080 (23.2)

1446 (21.2)

1634 (25.4)

  1. BMI body mass index, FPG fast plasma glucose, T2DM type 2 diabetes mellitus