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Table 3 Meta-regression analysis result of outcomes among baseline factors, and patients and treatment characteristics

From: The effect of vitamin C supplementation on lipid profile of type 2 diabetic patients: a systematic review and meta-analysis of clinical trials

 

Covariate

Coefficient (β)

95% CI

P-value

TC

Age

2.63

0.22, 5.04

0.036

Dose

0.01

− 0.01, 0.04

0.223

Duration

− 1.42

− 2.48, − 0.36

0.014

FBS

0.80

− 0.77, 2.39

0.268

TC

− 0.42

− 0.98, 0.14

0.126

TG

− 0.11

− 0.73, 0.50

0.675

LDL

− 0.15

− 0.85, 0.54

0.629

HDL

0.05

− 1.55, 1.67

0.938

HgA1C

− 14.96

− 38.56, 8.63

0.177

BMI

6.92

1.02, 12.82

0.028

TG

Age

4.22

− 3.17, 11.62

0.224

Dose

− 0.01

− 0.11, 0.08

0.772

Duration

− 2.10

− 5.20, 1.00

0.158

FBS

− 1.00

− 12.72, 10.72

0.841

TC

0.14

− 1.77, 2.06

0.871

TG

0.05

− 1.67, 1.78

0.946

LDL

0.48

− 1.84, 2.80

0.647

HDL

3.36

0.09, 6.63

0.045

HgA1C

3.72

− 73.66, 81.12

0.912

BMI

18.35

6.82, 29.88

0.007

LDL

Age

2.85

0.29, 4.82

0.031

Dose

0.02

0.00, 0.05

0.039

Duration

− 1.16

− 2.17, − 0.16

0.027

FBS

1.12

− 0.38, 2.64

0.122

TC

− 0.53

− 1.13, 0.05

0.071

TG

− 0.17

− 0.84, 0.49

0.570

LDL

− 0.31

− 1.06, 0.43

0.366

HDL

− 0.10

− 1.84, 1.63

0.893

HgA1C

− 20.77

− 41.32, − 0.22

0.048

BMI

4.88

− 2.45, 12.21

0.159

HDL

Age

− 1.03

− 1.63, − 0.42

0.004

Dose

− 0.004

− 0.01, 0.004

0.257

Duration

0.59

0.29, 0.89

0.001

FBS

− 0.25

− 0.78, 0.26

0.281

TC

0.15

− 0.005, 0.31

0.057

TG

− 0.007

− 0.22, 0.20

0.937

LDL

0.05

− 0.16, 0.27

0.566

HDL

− 0.01

− 0.56, 0.54

0.954

HgA1C

5.70

− 1.77, 13.17

0.114

BMI

− 2.27

− 4.61, 0.06

0.055

FBS

Age

2.17

0.47, 3.87

0.018

Dose

0.002

− 0.02, 0.02

0.848

Duration

− 0.97

− 1.73, − 0.21

0.018

FBS

0.31

− 1.77, 2.41

0.729

TC

− 0.20

− 0.74, 0.33

0.416

TG

0.10

− 0.46, 0.67

0.686

LDL

0.03

− 0.62, 0.69

0.916

HDL

0.92

− 0.48, 2.34

0.173

HgA1C

− 9.04

− 30.38, 12.29

0.349

BMI

6.29

1.23, 12.61

0.024

HgA1C

Age

0.10

0.01, 0.19

0.032

Dose

− 0.0001

− 0.001, 0.001

0.964

Duration

− 0.05

− 0.08, − 0.02

0.003

FBS

0.13

0.005, 0.262

0.044

TC

− 0.01

− 0.04, 0.01

0.328

LDL

− 0.002

− 0.04, 0.04

0.879

HDL

0.017

− 0.05, 0.09

0.617

HgA1C

− 0.38

− 1.48, 0.71

0.438

BMI

0.27

0.00, 0.54

0.049

  1. BMI body mass index, CI confidence interval, FBS fasting blood sugar, HDL high density lipoprotein, HgA1C hemoglobin A1C, LDL low density lipoprotein, TC total cholesterol, TG total triglycerides. The covariates are baseline factors