Table 1

Univariate conditional logistic regression models of socio-demographic and other background risk factors for suicidea

Risk factor

Cases

n (%)

Controls

n (%)

Odds Ratio

(95% CI)

p-value


Socio-demographic factors

Marital status:b

(i) Single

60 (31.7)

49 (25.9)

3.29 (1.42–7.64)

0.006

(ii) Separated/divorced/widowed

63 (33.3)

33 (17.5)

3.46 (1.90–6.30)

< 0.001

Non-white ethnic origin

5 (2.6)

16 (8.2)

0.21 (0.06–0.75)

0.02

Living alone

55 (28.4)

49 (25.3)

1.18 (0.74–1.86)

0.49

No current relationship

84 (45.7)

46 (25.0)

3.53 (1.99–6.27)

< 0.001

Responsible for child aged < 18 yrs.

34 (17.8)

47 (24.6)

0.46 (0.22–0.94)

< 0.001

Not been out socially in last month

96 (52.7)

33 (18.1)

4.94 (2.89–8.45)

< 0.001

Practising a religion

30 (15.6)

67 (34.9)

0.31 (0.18–0.54)

< 0.001

No education beyond age 16 yrs.

46 (23.7)

15 (7.7)

5.43 (2.42–12.16)

< 0.001

Improved standard of living since 1990

6 (3.2)

29 (15.6)

0.08 (0.02–0.34)

= 0.001

Unemployed or long-term sick/disabled

33 (17.0)

6 (3.1)

7.75 (2.74–21.95)

< 0.001

Ever been unemployed since 1990c

52 (40.0)

27 (20.8)

2.67 (1.47–4.83)

< 0.001

Concerns over work prospectsc

84 (68.9)

35 (28.7)

5.90 (3.02–11.53)

< 0.001


Other background factors

Born prematurely

32 (20.6)

30 (19.4)

1.09 (0.62–1.91)

0.77

Suicide by 1st degree relative

31 (16.4)

6 (3.2)

6.00 (2.33–15.46)

< 0.001

Adopted

12 (6.2)

6 (3.1)

2.00 (0.75–5.33)

0.17

Ever ran away as a child

25 (13.4)

9 (4.8)

3.00 (1.35–6.68)

0.007

Ever lived in a children's home

6 (3.1)

10 (5.2)

0.60 (0.22–1.65)

0.32

Abusive experiences in childhoodd

31 (16.8)

33 (17.8)

0.93 (0.54–1.58)

0.79


a Pair-wise analyses conducted on 194 matched case-control sets, except for: marital status (189/194 = 97.4%); no current relationship (184/194 = 94.8%); responsible for child < 18 yrs. (191/194 = 98.5%); not been out socially in last month (182/194 = 93.8%); practising a religion (192/194 = 99.0%); improved standard of living post-1990s (186/194 = 95.9%); born prematurely (155/194 = 79.9%); suicide by 1st degree relative (189/194 = 97.4%); ever ran away as a child (187/194 = 96.4%); ever lived in a children's home (193/194 = 99.5%); abusive experiences in childhood (185/194 = 95.4%)

b Reference category is married/cohabiting

c Analysis of two explanatory variables based on smaller number of matched case-control sets, due to ineligibility according to age: 'ever been unemployed since 1990' (N = 130 sets); 'concerns over work prospects' (N = 122 sets)

d Includes sexual, physical or emotional abuse during childhood

Almasi et al. BMC Psychiatry 2009 9:45   doi:10.1186/1471-244X-9-45

Open Data