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Table 1 Characteristics of the study population

From: MTNR1B rs10830963 is associated with fasting plasma glucose, HbA1Cand impaired beta-cell function in Chinese Hans from Shanghai

 

Beijing

Shanghai

Total population

P

N (%male)

1574 (45.2)

1636 (43.5)

3210 (44.3)

 

Age (years)

58.3 ± 5.9

58.9 ± 6.0

58.6 ± 6.0

0.0095

BMI (kg/m2)

25.1 (22.8-27.4)

23.5 (21.3-25.9)

24.2 (22.0-26.6)

< 0.0001

Current smoker (%)

499 (31.7)

403 (24.7)

902 (28.1)

< 0.0001

Current drinker (%)

584 (37.1)

327 (20.0)

911 (28.4)

< 0.0001

Physical activity, (MET-h/wk)

49.1 (23.1-76.4)

39.6 (23.1-65.5)

46.2 (23.1-69.3)

< 0.0001

Sleep duration, hour

8.0 (7.0-8.5)

7.5 (6.5-8.0)

8.0 (7.0-8.0)

< 0.0001

Self-reported sleep disorder (%)

362 (22.97)

251 (15.36)

613 (19.10)

< 0.0001

Fasting glucose (mmol/l)

6.16 ± 1.96

5.53 ± 1.42

5.84 ± 1.74

< 0.0001

HbA1C (%)

6.08 ± 1.22

5.90 ± 0.96

5.99 ± 1.10

< 0.0001

HOMA-B (%)

100.1 ± 44.9

120.0 ± 46.9

110.3 ± 47.0

< 0.0001

HOMA-S (%)

64.0 (47.3-89.5)

63.5 (46.9-85.1)

63.7 (47.1-86.9)

0.05

Diabetes (%)

272 (17.3)

152 (9.3)

424 (13.2)

< 0.0001

Obesity (%)

320 (20.3)

154 (9.4)

474 (14.8)

< 0.0001

Hypertension (%)

978 (62.1)

803 (49.1)

1781 (55.5)

< 0.0001

  1. Data are mean ± SD, median (inter-quartile range) or n (%). P represents significance of the differences between Beijing and Shanghai subpopulations.