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Table 3 Comparison of biochemical data of the low HDL-C and control subjects between different groups of G1522A genotypes.

From: Sphingomyelin phosphodiesterase-1 (SMPD1) coding variants do not contribute to low levels of high-density lipoprotein cholesterol

 

Control subjects

t test p*

Low HDL-C subjects

t test p*

 

GG

AG + AA

 

GG

AG + AA

 

n

129

101

 

75

42

 

Age (y)

50 ± 10

50 ± 8

0.5

49 ± 9

51 ± 11

0.4

Gender (M/F)

81/48

69/32

0.3

52/23

32/10

0.4

BMI (kg/m2)

26.4 ± 4.6

26.3 ± 4.4

0.9

28.3 ± 5.2

27.7 ± 4.5

0.5

DM (%)

10.5

10.9

0.9

20.3

19.0

0.9

HTN (%)

19.3

22.8

0.5

51.3

33.3

0.06

CAD (%)

45.9

56.0

0.1

75.4

65.8

0.3

FH of CAD (%)

51.7

75.8

0.0003

75.0

67.5

0.4

TG (mmol/L)

1.60 ± 0.89

1.70 ± 0.89

0.4

4.34 ± 3.89

3.19 ± 1.90

0.07

T Chol (mmol/L)

5.55 ± 1.19

5.96 ± 1.62

0.03

6.33 ± 2.39

5.25 ± 1.56

0.009

HDL-C (mmol/L)

1.34 ± 0.31

1.33 ± 0.33

0.8

0.67 ± 0.13

0.67 ± 0.13

0.9

LDL-C (mmol/L)

3.51 ± 1.10

3.93 ± 1.54

0.02

3.71 ± 1.74

3.17 ± 1.34

0.09

  1. BMI, body mass index; DM, diabetes mellitus; HTN, hypertension; CAD, coronary artery disease; FH, familial history; TG, plasma triglycerides; T Chol, total plasma cholesterol; HDL-C, plasma high-density lipoprotein cholesterol; LDL-C, plasma low-density cholesterol.
  2. * significant p-value bolded.