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Table 2 Demographic characteristics of study participants stratified according to HbA1c status

From: Analysis of the relationship between the HbA1c screening results and the development and worsening of diabetes among adults aged over 40 years: a 4-year follow-up study of 140,000 people in Japan – the Shizuoka study

 

Group A

(n = 133,885)

Group B

(n = 152)

SDR*

Group C

(n = 986)

SDR*

Group D

(n = 2829)

SDR*

Demographic characteristics

 Age, years (mean, SD)

68.57 (9.90)

67.89 (8.16)

−0.075

68.89 (8.94)

0.034

69.35 (8.26)

0.086

Sex (n, %)

  

−0.543

 

− 0.355

 

− 0.246

 Female

77,174 (57.64)

48 (31.58)

 

396 (40.16)

 

1286 (45.46)

 

 Male

56,711 (42.36)

104 (68.42)

 

590 (59.84)

 

1543 (54.54)

 

Clinical characteristics

 BMI (mean, SD)

22.28 (3.11)

23.56 (2.86)

0.428

23.84 (3.51)

0.472

24.01 (3.43)

0.527

 SBP, mmHg (mean, SD)

128.15 (16.25)

129.08 (16.15)

0.057

132.93 (16.77)

0.289

131.73 (16.02)

0.221

 DBP, mmHg (mean, SD)

74.46 (10.56)

76.01 (10.36)

0.149

76.94 (10.87)

0.232

75.92 (10.65)

0.138

 Triglycerides, mg/dL (mean, SD)

108.61 (65.33)

122.66 (76.28)

0.198

147.54 (118.44)

0.407

140.33 (86.00)

0.415

 HDL, mg/dL (mean, SD)

63.54 (16.56)

55.20 (13.46)

−0.553

56.83 (14.53)

−0.431

57.33 (15.30)

− 0.389

 LDL, mg/dL (mean, SD)

124.31 (29.39)

120.03 (31.24)

−0.141

130.76 (32.05)

0.210

126.42 (30.10)

0.071

 FBG, mg/dL (mean, SD)

93.98 (10.81)

110.63 (12.77)

1.408

143.67 (36.05)

1.867

120.68 (19.245)

1.711

 GOT, IU/L (mean, SD)

23.70 (9.11)

22.38 (6.83)

−0.164

25.57 (12.40)

0.172

26.63 (13.27)

0.257

 GPT, IU/L (mean, SD)

19.33 (11.82)

21.05 (10.26)

0.155

25.55 (16.30)

0.437

26.82 (19.66)

0.462

 γ-GTP, IU/L (mean, SD)

30.20 (35.57)

34.28 (24.55)

0.133

46.28 (54.59)

0.349

42.81 (58.58)

0.260

 HbA1c, % (mean, SD)

5.56 (0.32)

6.15 (0.28)

1.970

7.49 (1.11)

2.369

6.75 (0.39)

3.351

 Hematocrit, % (mean, SD)

41.55 (3.89)

43.11 (4.26)

0.382

43.44 (4.04)

0.477

42.66 (4.15)

0.275

 Hemoglobin, g/dL (mean, SD)

13.60 (1.40)

14.17 (1.49)

0.400

14.36 (1.49)

0.526

14.05 (1.54)

0.309

 RBC, 104/μL (mean, SD)

441.55 (43.64)

457.98 (48.12)

0.358

464.02 (47.01)

0.496

459.46 (45.63)

0.401

 Uric acid, mg/dL (mean, SD)

5.17 (1.34)

5.52 (1.23)

0.275

5.22 (1.29)

0.042

5.45 (1.30)

0.217

 Serum creatinine, mg/dL (mean, SD)

0.76 (0.31)

0.83 (0.47)

0.173

0.76 (0.19)

0.000

0.77 (0.20)

0.053

 eGFR, mL/min (mean, SD)

69.23 (14.74)

70.57 (14.99)

0.090

72.84 (16.13)

0.234

70.28 (15.09)

0.070

Urine glucose (n, %)

  

−0.344

 

−0.791

 

−0.395

 Negative

132,268 (98.79)

139 (91.45)

 

727 (73.73)

 

2552 (90.21)

 

 Trace

617 (0.46)

5 (3.29)

 

63 (6.39)

 

75 (2.65)

 

 1+

410 (0.31)

2 (1.32)

 

70 (7.10)

 

87 (3.08)

 

 2+

168 (0.13)

2 (1.32)

 

53 (5.38)

 

48 (1.70)

 

 3+

136 (0.10)

3 (1.97)

 

72 (7.30)

 

63 (2.23)

 

Urine protein (n, %)

  

−0.205

 

−0.285

 

−0.154

 Negative

117,900 (88.06)

125 (82.24)

 

769 (77.99)

 

2377 (84.02)

 

 Trace

10,228 (7.64)

14 (9.21)

 

122 (12.37)

 

241 (8.52)

 

 1+

4146 (3.10)

8 (5.26)

 

66 (6.69)

 

139 (4.91)

 

 2+

1073 (0.80)

4 (2.63)

 

20 (2.03)

 

53 (1.87)

 

 3+

249 (0.19)

0 (0.00)

 

8 (0.81)

 

16 (0.57)

 

Anti-hypertensive drugs (n, %)

51,127 (38.19)

69 (45.39)

−0.147

415 (42.09)

−0.080

1435 (50.72)

−0.254

Lipid-lowering drugs (n, %)

32,381 (24.19)

34 (22.37)

−0.043

241 (24.44)

−0.006

930 (32.87)

−0.193

Treatment history (n, %)

 Cerebrovascular disease

5470 (4.09)

7 (4.61)

−0.025

45 (4.56)

−0.023

145 (5.13)

−0.050

 Cardiovascular disease

8348 (6.24)

7 (4.61)

−0.072

65 (6.59)

−0.014

241 (8.52)

−0.088

Lifestyle characteristics

 Daily smoking (n, %)

11,842 (8.84)

23 (15.13)

−0.194

141 (14.3)

−0.171

289 (10.22)

−0.047

Alcohol consumption (n, %)

  

−0.149

 

−0.130

 

− 0.043

 Daily

26,634 (19.89)

38 (25.00)

 

249 (25.25)

 

591 (20.89)

 

 Sometimes

25,458 (19.01)

28 (18.42)

 

188 (19.07)

 

567 (20.04)

 

 Never

74,569 (55.7)

74 (48.68)

 

507 (51.42)

 

1520 (53.73)

 
  1. * SDR values are calculated with group A as reference. SDR, standardized difference score; SD, standard deviation, BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; HDL, high-density lipoprotein; LDL, low-density lipoprotein; FBG, fasting blood glucose; GOT, glutamate-oxaloacetate transaminase; GPT, glutamate-pyruvate transaminase; γ-GTP, gamma-glutamyl transpeptidase; HbA1c, hemoglobin A1c; RBC, red blood cell; eGFR, epidermal growth factor receptor