Table 1 Summary of findings of studies of familial cases and controls

12/443 (2.7%)

2/521 (0.8%)

7.1 (1.6–31)

0.003

2.4 (1.5–3.8)

0.0003

9/1,212 (0.7%)

2/2,081 (0.1%)

7.7 (1.7–36)

0.002

2.0 (1.2–3.2)

0.01

10/923 (1.1%)

0/1,084 (0.0%)

-

0.0004

2.3 (1.4–3.9)

0.0025

3/113 (2.7%)

6/2,501 (0.2%)

11.1 (2.8–44)

0.005

NA

55/1,071 (5.1%)

18/1,620 (1.1%)

4.6 (2.7–8)

0.00000

1.7 (1.3–2.2)

0.0001