Direct MAR test

Retrospective group

Prospective group

Independent Student’s t-test

N

%

N

%

Total

76

2.69

25

7.88

P < 0.001

IgG

40

1.41

7

2.20

P = NS

IgA

22

0.77

12

3.78

P < 0.001

IgG& IgA

14

0.49

6

1.89

P < 0.01