Table 2 Clinical characteristics and islet function indexes of total subjects according to different gender groups

RDW

12.9 (12.4–13.2)

13.1 (12.7–13.6)

17.601

< 0.001

age (years)

52 (44–62)

61 (53–68)

52.961

< 0.001

duration (years)

6 (1–10)

6 (2–10)

2.252

0.133

BMI (kg/m²)

25.73 (23.66–27.92)

25.29 (22.88–27.55)

1.608

0.205

SBP (mmHg)

130 (118–140)

130 (119.5–140)

0.739

0.390

DBP (mmHg)

80 (74–88)

76 (70–82)

21.217

< 0.001

AST (mmol/L)

19 (15–24)

19 (15–23)

0.027

0.869

TG (mmol/L)

1.69 (1.12–2.79)

1.57 (1.02–2.29)

4.808

0.028

TCH (mmol/L)

4.5 (3.85–5.06)

4.44 (3.97–5.14)

0.197

0.657

LDL (mmol/L)

2.86 (2.39–3.23)

2.86 (2.44–3.27)

1.033

0.309

HDL (mmol/L)

0.94 (0.77–1.1)

1.02 (0.87–1.23)

14.639

< 0.001

ALT (mmol/L)

22 (15–33)

18 (13–27)

9.213

0.002

Cr (umol/L)

83 (72–97)

68 (55–82)

75.969

< 0.001

SUA (umol/L)

313 (265–378)

261 (221–305)

52.574

< 0.001

FBG (mmol/L)

8.27 (6.56–10.56)

8.21 (6.44–10.25)

0.158

0.691

P2hBG (mmol/L)

17.21 (14.67–20.18)

17.95 (14.5–20.95)

1.631

0.202

HbA1c (%)

8.8 (7.3–10.7)

8.6 (7.3–10.7)

0.136

0.712

FCP (nmol/L)

0.71 (0.55–0.99)

0.7 (0.52–0.93)

0.860

0.354

P2hCP (nmol/L)

1.68 (1.22–2.22)

1.77 (1.26–2.25)

0.325

0.569

hypertension(%)

128 (37.3)

77 (35.6)

0.159

0.690

poor glycemic control(%)

338 (98.5)

212 (98.1)

fisher’s

0.740

hyperuricemia(%)

48 (14)

31 (14.4)

0.014

0.906

FCPI

0.09 (0.06–0.12)

0.08 (0.06–0.12)

0.236

0.627

PPCPI

0.1 (0.07–0.14)

0.09 (0.07–0.16)

0.014

0.907

ΔC-peptide

0.92 (0.54–1.35)

0.97 (0.61–1.4)

1.187

0.276

HOMA2%B

51.2 (35.5–82.5)

52.95 (33.2–83.1)

0.003

0.957

HOMA2IR

1.9 (1.41–2.57)

1.84 (1.36–2.44)

0.998

0.318