Table 1 Characteristics of cases and controls
From: Association between benzodiazepines and suicide risk: a matched case-control study
All | Cases | Controls | p | Test statistic | |
|---|---|---|---|---|---|
Population | 308 | 154 | 154 | – | – |
Male | 202 (65.6) | 101 (65.6) | 101 (65.6) | – | – |
Mean age, years | 47.1 (17.0) | 47.1 (17.2) | 47.1 (16.8) | 0.968 | −0.040 |
Housing | 0.714 | 0.673 | |||
Owned accommodation | 130 (42.2) | 67 (43.5) | 63 (40.9) | ||
Rented | 166 (53.9) | 80 (51.9) | 86 (55.8) | ||
Living with friends (n = 4) or lack of housing information (n = 8) | 12 (3.9) | 7 (4.5) | 5 (3.2) | ||
Education level | 0.130 | 4.085 | |||
Low | 103 (33.4) | 43 (27.9) | 60 (39.0) | ||
Medium | 146 (47.4) | 79 (51.3) | 67 (43.5) | ||
High | 54 (17.5) | 29 (18.8) | 25 (16.2) | ||
Employed | 95 (31.0) | 49 (32.0) | 46 (30.1) | 0.711 | 0.137 |
Previous suicide attempt | 44 (14.3) | 30 (19.5) | 14 (9.1) | 0.009 | 6.788 |
Previous inpatient psychiatric care | 155 (50.3) | 80 (51.9) | 75 (48.7) | 0.569 | 0.325 |
Previous inpatient somatic care | 80 (26.0) | 50 (32.5) | 30 (19.5) | 0.009 | 6.754 |
Diagnosis | 1.000 | 0.047 | |||
Mental and behavioral disorders due to psychoactive substance use (F10–19) | 66 (21.4) | 33 (21.4) | 33 (21.4) | ||
Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20–29) | 28 (9.1) | 14 (9.1) | 14 (9.1) | ||
Bipolar disorder (F31) | 14 (4.5) | 7 (4.5) | 7 (4.5) | ||
Depressive disorders (F32–34.1) | 103 (33.4) | 51 (33.1) | 52 (33.8) | ||
Anxiety, dissociative, stress-related, somatoform, and other non-psychotic mental disorders (F40–48) | 42 (13.6) | 21 (13.6) | 21 (13.6) | ||
Disorders of adult personality and behavior (F60–69) | 22 (7.1) | 11 (7.1) | 11 (7.1) | ||
Asperger’s/ADHD (F84, F90) | 6 (3.9) | 3 (1.9) | 3 (1.9) | ||
No psychiatric diagnosis | 27 (8.8) | 14 (9.1) | 13 (8.4) | ||
Comorbid substance use disorder (F10–19) | 29 (9.4) | 15 (9.7) | 14 (9.1) | 0.845 | 0.038 |