Table 3 Odds and 95% confidence interval for occurrence of the gallstone in each tertile categories of DAL

PRAL

T1

(< -11.2)

T2

(-11.2-0.56)

T3

(0.56 ≤)

No. of cases

55

63

71

0.047

Model 1

ref

0.9 (0.57, 1.4)

1.2 (0.8, 1.86)

0.089

Model 2

ref

1.03 (0.99, 1.04)

1.18 (0.48, 1.2)

0.047

Model 3

ref

1.25 (0.9, 2.3)

1.51 (0.54, 1.36)

0.023

NEAP

T1

(< 48.7)

T2

(48.7–59.9)

T3

(59.9 ≤)

No. of cases

53

64

72

0.046

Model 1

ref

0.95 (0.43, 1.1)

1.17 (0.7, 2.9)

0.082

Model 2

ref

1.2 (0.8, 1.9)

1.39 (0.89, 2.1)

0.045

Model 3

ref

1.19 (0.78, 1.84)

1.48 (0.9, 2.3)

0.037