Table 2 Associations between MC4R rs17782313 and ENPP1 rs1044498 SNPs and GWG status.

From: MC4R and ENPP1 gene polymorphisms and their implication in maternal and neonatal risk for obesity

 

Study sample n(%)

Underweight/normal n(%)

Overweight/obesity n(%)

p+

Insufficient GWG n(%)

Normal GWG n(%)

Excessive GWG n (%)

p+

MC4R rs17782313 Maternal SNP

TT

106 (57.3)

81 (60.4)

25 (49.0)

0.185

17 (63.0)

25 (59.5)

64 (55.2)

0.721

CT + CC

79 (42.7)

53 (39.6)

26 (51.0)

 

10 (37.0)

17 (40.5)

52 (44.8)

T-allele

285 (77.0)

212 (79.1)

73 (71.6)

0.124

41 (75.9)

67 (79.8)

177 (76.3)

0.793

C-allele

85 (23.0)

56 (20.9)

29 (28.4)

 

13 (24.1)

17 (20.2)

55 (23.7)

p-value for HW(b

0.118

0.136

0.439

 

0.131

0.100

0.071

 

ENPP1 rs1044498 Maternal SNP

AA

129 (69.7)

95 (70.9)

34 (66.7)

0.576

19 (70.4)

28 (66.7)

82 (70.7)

0.886

AC + CC

56 (30.3)

39 (29.1)

17 (33.3)

 

8 (29.6)

14 (33.3)

34 (29.3)

A-allele

310 (83.8)

226 (84.3)

84 (82.4)

0.645

46(85.2)

68 (80.9)

196 (84.5)

0.166

C-allele

60 (16.2)

42 (15.7)

18 (17.6)

 

16 (29.6)

16 (19.1)

36 (15.5)

p-value for HW

0.640

0.849

0.571

 

0.366

0.634

0.574

 
  1. Legend: GWG = Gestational weight gain; (bHardy-Weinberg equilibrium; +p-values obtained from Chi-square or Fisher’s exact tests.
  2. ENPP1rs1044498 A > C: nucleotide pyrophosphatase/phosphodiesterase gene polymorphisms (AA = reference category); AA – homozygous for A allele; AC – heterozygous; CC - homozygous for C allele;
  3. MC4R rs17782313 T > C: melanocortin- 4 receptor gene polymorphisms (TT = reference category); CC - homozygous for C allele; CT - heterozygous; TT- homozygous for T allele.