Table 5 Adjusted odds ratio (OR), 95% confidence intervals (CI), and p-values of suicide risk according to number of visits to the emergency department

1

1.00 Referent

1.00 Referent

1.00 Referent

2

1.12 (0.66 – 1.91)

0.66

1.06 (0.62 – 1.80)

0.84

0.96 (0.56 – 1.65)

0.89

3

2.40 (1.41 – 4.09)

0.001

2.37 (1.39 – 4.31)

0.002

2.17 (1.26 – 3.73)

0.005

4

4.38 (2.42 – 7.95)

<0.001

3.73 (2.02 – 6.89)

<0.001

2.98 (1.57 – 5.65)

0.001

5

3.74 (1.47 – 9.50)

0.006

3.29 (1.28 – 8.49)

0.014

2.60 (0.98 – 6.91)

0.055

6

6.38 (2.56 – 15.93)

<0,001

4.96 (1.92 – 12.83)

0.001

3.26 (1.15 – 9.20)

0.026

7

10.26 (3.83 – 27.50)

<0.001

8.53 (3.12 – 23.30)

<0.001

5.97 (2.11 – 16.93)

0.001

8

35.35 (8.45 – 147.87)

<0.001

25.44 (5.83 – 111.03)

<0.001

17.78 (4.01 – 78.83)

<0.001

9

20.69 (4.01 – 106.79)

<0.001

17.26 (3.26 – 91.37)

0.001

12.18 (2.14 – 69.44)

0.005

10 or more

13.59 (6.15 – 30.04)

<0.001

8.34 (3.48 – 19.99)

<0.001

5.20 (2.04 – 13.23)

0.001