Table 2 Comparison of corneal nerve fiber parameters and baseline data between Mongolian and Han patients with type 2 diabetes mellitus

Diabetes duration (month)

120.00 (60.00,210.00)

84.00 (30.00,168.00)

-1.248^b

0.212

Gender (male/female)

23/10

46/25

0.243^c

0.622

Age (years)

55.00 (46.00,63.50)

57.00 (51.00,61.00)

-0.337^b

0.706

Smoke (yes/no)

13/20

26/45

0.074^c

0.786

Drink (yes/no)

16/17

34/37

0.003^c

0.955

Waist circumference (cm)

99.00 (91.50,102.00)

93.00 (87.00,98.00)

-2.458^b

0.014

BMI (kg/m²)

26.90 (24,85,28.90)

26.10 (24,50,27.90)

-0.940^b

0.347

MALB (mg/L)

10.70 (3.10,57.00)

6.90 (3.20,18.60)

-0.842^b

0.400

HbA1c (%)

9.30 (8.15, 10.30)

8.30 (7.20,9.40)

-2.271^b

0.023

ALT (U/L)

21.00 (15.00,32.50)

21.00 (14.00,32.00)

-0.304^b

0.761

AST (U/L)

20.00 (16.00,23.00)

19.00 (15.00,24.00)

-0.420^b

0.675

GGT (U/L)

27.00 (21.00,45.50)

30.00 (20.00,47.00)

-0.269^b

0.788

FPG (mmol/L)

8.86 ± 3.35

7.81 ± 2.55

-1.601^a

0.116

CREA (umol/L)

61.50 (55.00,70.95)

61.40 (53.30,73.20)

-0.014^b

0.989

UA (umol/L)

333.36 ± 79.97

360.30 ± 102.22

1.334^a

0.185

CHOL (mmol/L)

4.45 (3.78,5.64)

4.60 (3.82,5.45)

-0.129^b

0.897

TG (mmol/L)

1.80 (1.22,2.52)

1.76 (1.20,2.40)

-0.402^b

0.688

HDL-C (mmol/L)

1.03 (0.90,1.20)

0.98 (0.86,1.12)

-1.125^b

0.261

LDL-C (mmol/L)

2.82 (1.82,3.49)

2.75 (1.99,3.43)

-0.112^b

0.911

CNFD (no./mm²)

18.74 (16.24,23.74)

24.99 (19.99,28.74)

-3.340^b

0.001

CNBD (no./mm²)

25.00 (16.24,41.56)

33.74 (18.75,51.24)

-1.778^b

0.075

CNFL (mm/mm²)

13.81 ± 3.15

15.39 ± 3.47

2.215^a

0.029