Table 4.
Incidence and HRs of Different Ways of Attempting Suicide in the Poststroke and Nonstroke Cohorts
| Outcome | Nonstroke | Poststroke | Crude HR (95% CI) | Adjusted HRb (95% CI) | ||
|---|---|---|---|---|---|---|
| Event | Ratea | Event | Ratea | |||
| Liquid or solid poisoning (ICD‐9‐CM code E950) | 1377 | 1.70 | 1607 | 5.27 | 3.02 (2.81–3.25)c | 2.28 (2.09–2.49)c |
| Self‐poison using motor vehicle exhaust gas (ICD‐9‐CM code E952) | 86 | 0.11 | 62 | 0.20 | 1.88 (1.36–2.61)c | 1.42 (0.94–2.14) |
| Hanging (ICD‐9‐CM code E953) | 78 | 0.10 | 69 | 0.23 | 2.29 (1.66–3.17)c | 1.73 (1.16–2.57)d |
| Cutting/piercing (ICD‐9‐CM code E956) | 213 | 0.26 | 208 | 0.68 | 2.53 (2.09–3.06)c | 1.93 (1.53–2.44)c |
| Jumping from high places (ICD‐9‐CM code E957) | 16 | 0.02 | 33 | 0.11 | 5.29 (2.91–9.62)c | 4.22 (2.08–8.56)c |
| Other (ICD‐9‐CM codes E951, E954, E955, E958, and E959) | 155 | 0.19 | 161 | 0.53 | 2.76 (2.21–3.44)c | 2.25 (1.72–2.94)c |
CI indicates confidence interval; HR, hazard ratio; ICD‐9‐CM, International Classification of Diseases, Ninth Revision, Clinical Modification.
a
Incidence rate per 10 000 person‐years.
b
Multivariable analysis considered age, monthly income, urbanization level, and comorbidity of schizophrenia, depression before stroke, poststroke depression, alcohol‐related illness, anxiety, mental disorders, insomnia, cognitive dysfunction, dementia after stroke, diabetes mellitus, chronic obstructive pulmonary disease, asthma, coronary artery disease, and hypertension.
c
P<0.001.
d
P<0.01.