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Table 3 Pooled effect on the association of UCPs variants with DR in type-2 DM patients

From: Association of UCP1 and UCP2 variants with diabetic retinopathy susceptibility in type-2 diabetes mellitus patients: a meta-analysis

Comparison

Variant

Model

Effect

Pooled OR (95% C.I.)

Z

Pz

I2

P for heterogeneity

DR vs DWR

UCP1 rs1800592

Allelic (G vs A)

Fixed

1.03 (0.93, 1.13)

0.51

0.609

0.0%

0.533

Homozygous (GG vs AA)

Fixed

1.10 (0.88, 1.37)

0.85

0.398

0.0%

0.375

Heterozygous (AG vs AA)

Fixed

1.00 (0.84, 1.19)

0.01

0.992

0.0%

0.431

Dominant (GG + AG vs AA)

Fixed

1.03 (0.87, 1.21)

0.31

0.760

8.6%

0.335

Recessive (GG vs AG + AA)

Fixed

1.11 (0.92, 1.33)

1.07

0.284

0.0%

0.684

DR vs DWR

UCP2 rs659366

Allelic (A vs G)

Random

1.00 (0.79, 1.27)

0.02

0.983

79.3%

0.001

Homozygous (AA vs GG)

Random

1.17 (0.63, 2.17)

0.49

0.623

82.7%

0.001

Heterozygous (GA vs GG)

Random

1.10 (0.79, 1.55)

0.56

0.572

66.8%

0.029

Dominant (AA+GA vs GG)

Random

1.12 (0.75, 1.67)

0.55

0.584

78.4%

0.003

Recessive (AA vs GA + GG)

Random

1.07 (0.73, 1.57)

0.35

0.73

66.1%

0.031

  1. DM diabetes mellitus, DWR diabetes without retinopathy, DR diabetic retinopathy, PDR proliferative diabetic retinopathy, NPDR non-proliferative diabetic retinopathy, C.I. confident interval