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Figure 1

Comparison of the serum adiponectin between the mildly decreased eGFR (G2) and the control with normal eGFR (G1). P: Mann–Whiney U test
Comparison of the serum adiponectin between the mildly decreased eGFR (G2) and the control with normal eGFR (G1). P: Mann–Whiney U test

Figure 2

Comparison of serum adiponectin in male (open bars) and female (solid bars) in the mildly decreased eGFR (G2) and the control with normal eGFR (G1). P: Mann–Whiney U test
Comparison of serum adiponectin in male (open bars) and female (solid bars) in the mildly decreased eGFR (G2) and the control with normal eGFR (G1). P: Mann–Whiney U test

Figure 3

Comparison of serum adiponectin between the normal eGFR (gray bar) and the mildly decreased eGFR (black bar) among normal weight, overweight, and obesity based on Asian BMI. The Kruskal–Wallis test followed by a post-hoc test was used to determine the differences between three independent groups and all pairwise comparisons. (*P < 0.05 vs normal weight group and obese group and overweight group and obese group)
Comparison of serum adiponectin between the normal eGFR (gray bar) and the mildly decreased eGFR (black bar) among normal weight, overweight, and obesity based on Asian BMI. The Kruskal–Wallis test followed by a post-hoc test was used to determine the differences between three independent groups and all pairwise comparisons. (*P < 0.05 vs normal weight group and obese group and overweight group and obese group)

Anthropometric characteristics and biochemical variables of the mildly decreased eGFR (G2) and the normal eGFR (G1)

VariablesNormal eGFR (G1)Mildly decreased eGFR (G2)P
(n = 90)(n = 82)
Sex
Male, n (%)14 (16)22 (27)
Female, n (%)76 (84)60 (73)0.069a
Age (years)43.52 ± 5.9250.17 ± 6.42<0.001*b
Weight (kg)63.53 ± 12.3662.24 ± 9.990.760b
Body mass index (kg/m2)24.697 ± 3.8724.09 ± 3.100.624b
Waist (cm)82.56 ± 10.1483.72 ± 8.350.278b
Hip (cm)98.94 ± 8.9197.54 ± 7.500.331b
Waist-to-hip ratio0.84 ± 0.070.86 ± 0.060.062b
DBP (mmHg)75.89 ± 9.3380.20 ± 10.34<0.001*b
SBP (mmHg)116.28 ± 12.46124.32 ± 13.25<0.001*b
Body adipose30.98 ± 4.8830.20 ± 4.960.274b
Creatinine (mg/dL)0.70 ± 0.110.92 ± 0.14<0.001*b
eGFR105.02 ± 8.3380.20 ± 6.98<0.001*b
UACR (mg/g)6.71 ± 4.278.13 ± 9.390.582b
FPG (mg/dL)88.44 ± 6.5688.91 ± 6.970.630b
Cholesterol (mg/dL)225.56 ± 50.23229.27 ± 45.450.480b
Triglyceride (mg/dL)113.42 ± 54.58125.43 ± 69.300.321b
HDL-C (mg/dL)54.29 ± 14.5460.61 ± 15.160.012*b
LDL-C (mg/dL)144.36 ± 38.66143.45 ± 40.130.800b
Serum adiponectin (mg/mL)6.57 ± 3.248.23 ± 3.26<0.001*b

Multiple linear regression with adiponectin as a dependent variable (N = 172)

Independent variablesUnstandardized coefficientsStandardized coefficientstP < 0.05
BStd. ErrorBeta
Constant22.19036.0210.6160.539
Age (year)0.1170.0520.2442.2480.026*
Weight (kg)0.2440.2470.8220.9890.324
BMI (kg/m2)–0.5950.643–0.627–0.9260.356
Waist (cm)–0.0780.264–0.216–0.2950.769
Hip (cm)–0.0940.343–0.233–0.2750.784
Waist-to-hip ratio3.97624.3280.0840.1630.870
DBP (mmHg)–0.0500.032–0.150–1.5340.127
SBP (mmHg)0.0190.0250.0770.7830.435
Body adiposity index0.1820.4850.2680.3750.708
Creatinine (mg/dL)–1.4514.985–0.073–0.2910.771
eGFR–0.0300.053–0.129–0.5620.575
UACR (mg/g)0.0210.0310.0450.6640.508
FPG (mg/dL)0.0540.0350.1081.5540.122
Cholesterol (mg/dL)0.0200.0110.2891.9090.058
Triglyceride (mg/dL)–0.0060.005–0.103–1.1520.251
HDL-C (mg/dL)0.0530.0200.2412.6510.009*
LDL-C (mg/dL)–0.0300.012–0.351–2.5370.012*
Constant = 22.190; R = 0.600; R2 = 0.280; SEest= ±2.82; F = 4.494; P <0.05

Univariate and multivariate analyses of risk for mildly decreased eGFR

VariablesCaseControlCrude ORPAdjusted ORP
N (%)N (%)(95%Cl)(95%Cl)
Sex
Male22 (26.8)14 (15.6)1
Female60 (73.2)76 (84.4)0.5 (0.2–1.1)0.072
Age (years)
35–4520 (24.4)60 (66.7)11
46–5538 (46.3)25 (27.8)4.5 (2.2–9.3)<0.001*4.0 (1.9–8.3)<0.001*
>5524 (29.3)5 (5.5)14.4 (4.9–42.8)<0.001*11.4 (3.7–35.5)<0.001*
Body mass index (kg/m2)
Normal30 (36.6)30 (33.3)1
Overweight27 (37.9)30 (33.3)0.9 (0.4–1.9)0.776
Obese25 (30.5)30 (33.3)0.8 (0.4–1.7)0.626
Waist-to-hip ratio
Male ≤0.90, Female ≤0.8552 (63.4)63 (70.0)1
Male >0.90, Female >0.8530 (36.6)27 (30.0)1.3 (0.7–2.5)0.360
SBP (mmHg)
<13057 (69.5)77 (85.6)11
≥13025 (30.5)13 (14.4)2.6 (1.2–5.5)0.013*1.2 (0.4–3.4)0.689
DBP (mmHg)
<8553 (64.6)75 (83.3)11
≥8529 (35.4)15 (16.7)2.7 (1.4–5.9)0.006*2.2 (0.8–5.5)0.112
Glucose (mg/dL)
<10078 (95.1)89 (5.6)1
≥1004 (4.9)1 (1.1)4.5 (0.5–41.7)0.179
Cholesterol (mg/dL)
<20018 (22.0)28 (31.1)1
≥20064 (78.0)62 (68.9)1.6 (0.8–3.2)0.177
Triglyceride (mg/dL)
<15058 (70.7)71 (78.9)1
≥15024 (29.3)19 (21.1)1.5 (0.8–3.1)0.219
HDL-C (mg/dL)
Male ≥40, Female ≥5014 (17.1)23 (25.6)1
Male <40, Female <5068.6 (82.9)67 (74.4)1.6 (0.8–3.5)0.179
LDL-C (mg/dL)
<10011 (12.6)9 (10.0)1
≥10076 (87.4)81 (90.0)0.8 (0.3–2.1)0.647
Serum adiponectin (mg/mL)
<5.7024 (29.3)45 (50.0)11
≥5.7058 (70.7)45 (50.0)2.4 (1.3–4.5)0.006*1.7 (0.8–3.5)0.147

Bivariate spearman’s rank correlation coefficients between serum adiponectin with anthropometric characteristics and biochemical variables

VariablesSerum adiponectin (µg/mL)
rP
Age (year)0.355<0.001*
Weight (kg)-0.306<0.001*
Body mass index (kg/m2)-0.2170.004*
Waist (cm)-0.2360.002*
Hip (cm)-0.2560.001*
Waist-to-hip ratio-0.1050.168
DBP (mmHg)-0.0710.358
SBP (mmHg)0.0040.963
Body adiposity index-0.0680.379
Creatinine (mg/dL)-0.0730.344
eGFR-0.2570.001*
UACR (mg/g)0.1080.159
FPG (mg/dL)-0.0050.947
Cholesterol (mg/dL)-0.0560.469
Triglyceride (mg/dL)-0.2040.007*
HDL-C (mg/dL)0.444<0.001*
LDL-C (mg/dL)-0.0820.283
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