Age (Yrs.)

Case (n = 90)

Control (n = 41)

P value

41 - 50

197.16 ± 28.85

168.92 ± 25.24

<0.0001

51 - 60

207.11 ± 18.65

118.75 ± 17.15

<0.0001

>60

263.91 ± 23.73

193.81 ± 20.88

<0.0001