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Table 2 The association between of hyperbilirobimia and type 2 diabetes, gestational diabetes, and metabolic syndrome based on type of bilirubin measurements and bilirubin serum

From: The association between bilirubin levels, and the incidence of metabolic syndrome and diabetes mellitus: a systematic review and meta-analysis of cohort studies

Outcome

Variables

Categories

RR (% 95 CI)

Heterogeneity assessment

Between Studies

Between subgroup

I square

P heterogeneity

Q

Q

P value

T2DM

Type of Bilirubin Measurements

PCB

1.57 (1.39–1.76)

33.90%

0.077

15.49

38.30

0.0001

TBIL

0.72 (0.67–0.77)

41.58%

0.089

10.09

Bilirubin Serum

(Ref. ≤0.36 mg/dl)

> 0.36 mg/dl

0.73 (0.51–0.95)

–

–

–

7.93

0.030

> 0.47 mg/dl

0.62 (0.52–0.71)

0.00%

0.420

3.87

NR

0.85 (0.79–0.91)

22.82%

0.088

8.09

MetS

Type of Bilirubin Measurements

DBIL

0.40 (0.31–0.50)

37.06%

0.154

9.53

12.33

0.0001

IBIL

0.67 (0.50–0.85)

19.77%

0.290

3.74

TBIL

0.73 (0.70–0.76)

56.30%

0.066

13.28

Bilirubin Serum

> 0.12 mg/dl

(Ref. ≤0.12 mg/dl)

0.75 (0.72–0.79)

45.76%

0.049

15.82

22.47

0.0001

> 0.029 mg/dl

(Ref. ≤0.029 mg/dl)

0.62 (0.40–0.83)

24.95%

0.260

2.66

> 0.10 mg/dl

(Ref. ≤0.10 mg/dl)

0.86 (0.75–0.97)

4.07%

0.370

3.13

NR

0.53 (0.48–0.59)

55.44%

0.052

14.80

GDM

Type of Bilirubin Measurements

DBIL

0.86 (0.75–0.97)

26.40%

0.149

2.17

0.73

0.700

IBIL

0.91 (0.79–1.02)

49.42%

0.129

2.46

TBIL

0.92 (0.83–1.00)

0.00%

0.420

0.65

Bilirubin Serum

> 0.12 mg/dl

(Ref. ≤0.12 mg/dl)

0.92 (0.84–1.00)

0.00%

0.420

0.65

0.37

0.540

> 0.029 mg/dl

(Ref. ≤0.029 mg/dl)

0.88 (0.80–0.96)

17.15%

0.103

1.99

  1. CI confidence interval, RR Risk ratio, NR Not reported