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Table 2 Sex- and age-specific incidence of gallstone disease among screened patients (n = 1296)

From: Clinical predictors of incident gallstone disease in a Chinese population in Taipei, Taiwan

Incidence of any gallstone disease

Variable

No. of no GSD at first screening

New cases

Person years at risk

Incidence Density (% per year) (95% CI)

Gender

    

Male

621

8

1614.5

0.496 (0.181-1.973)

Female

675

15

2025.5

0.741 (0.254-2.116)

p-value

   

0.40

Age

    

<40

373

2

932.5

0.214 (0.062-1.719)

40-49

409

5

1063.5

0.470 (0.112-2.103)

50-59

285

5

855

0.585 (0.236-1.983)

60+

229

11

789

1.394 (0.410-2.477)

p-value

   

0.03

Total

1296

23

3640

0.632 (0.292-2.009)