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Table 3 Chi square test results for the genotype distribution and allele frequencies of the 19- and 21-repeat alleles in elderly and control groups.

From: A microsatellite polymorphism in IGF1 gene promoter and longevity in a Han Chinese population

 

All

Women

Men

 

Elderly(%)

Control(%)

P value

Elderly(%)

Control(%)

P value

Elderly(%)

Control(%)

P value

Genotype

         

19-repeat1

  

0.543

  

0.582

  

0.283

19/192

69(14.00)

70(16.47)

0.297

36(14.94)

33(14.80)

0.966

33(13.10)

37(18.32)

0.126

19/non2

242(49.09)

198(46.59)

0.45

126(52.28)

107(47.98)

0.355

116(46.03)

91(45.05)

0.835

non/non2

182(36.92)

157(36.94)

0.994

79(32.78)

83(37.22)

0.316

103(40.87)

74(36.63)

0.357

Allele

         

19-repeat3

380(38.54)

338(39.76)

0.592

198(41.08)

173(38.79)

0.477

182(36.11)

165(40.84)

0.145

non

606(61.46)

512(60.24)

 

284(58.92)

273(61.21)

 

322(63.89)

239(59.16)

 

Genotype

         

21-repeat4

  

0.31

  

0.88

  

0.082

21/212

30(6.09)

33(7.76)

0.316

15(6.22)

16(7.17)

0.682

15(5.95)

17(8.42)

0.308

21/non2

200(40.57)

154(36.24)

0.179

94(39.00)

89(39.91)

0.842

106(42.06)

65(32.18)

0.031 6

non/non2

263(53.35)

238(56.00)

0.421

132(54.77)

118(52.91)

0.688

131(51.98)

120(59.41)

0.114

Allele

         

21-repeat5

260(26.37)

220(25.88)

0.813

124(25.73)

121(27.13)

0.628

136(26.98)

99(24.50)

0.397

Non

726(73.63)

630(74.12)

 

358(74.27)

325(72.87)

 

368(73.02)

305(75.50)

 
  1. 1. P values were obtained by the chi-square test of whole genotype distribution categorized by 19-repeat allele.
  2. 2. P values were obtained by the chi-square test of genotype distribution categorized by each genotype.
  3. 3. P values were obtained by the chi-square test of allele frequencies categorized by 19-repeat allele.
  4. 4. P values were obtained by the chi-square test of whole genotype distribution categorized by 21-repeat allele.
  5. 5. P values were obtained by the chi-square test of allele frequencies categorized by 21-repeat allele.
  6. 6. After Bonferroni correction, p < 0.0017 is considered significant.