TABLE 2.
Subgroup Analyses—Differences in 2-Year Rates of Completed Suicide Between the Preintervention Group and ESPP Group Selected by Baseline Variables and Process Indicators
| Preintervention Group | ESPP Group | Test Statistics | p | |
|---|---|---|---|---|
| Baseline variables | ||||
| Male | (N = 24) 3 (12.5%) | (N = 150) 4 (2.67%) | χ2 = 5.181a | 0.056b |
| Female | (N = 42) 2 (4.76%) | (N = 201) 3 (1.49%) | χ2 = 1.843a | 0.207 |
| Living alone | (N = 15) 1 (6.67%) | (N = 31) 2 (6.45%) | χ2 = 0.001a | 1.000b |
| History of suicide attempt | (N = 24) 1 (4.17%) | (N = 70) 2 (2.86%) | χ2 = 0.099a | 1.000b |
| Current diagnosis of depressive disorder (ICD-10) | (N = 45) 3 (6.67%) | (N = 170) 4 (2.35%) | χ2 = 2.102a | 0.161b |
| Index attempt requiring hospitalization | (N = 46) 5 (10.87%) | (N = 228) 6 (2.63%) | χ2 = 6.741a | 0.023b |
| Score on Geriatric Depression Scale below cutoff (<8) | (N = 14) 3 (21.43%) | (N = 132) 3 (2.27%) | χ2 = 11.786a | 0.012b |
| Score on Geriatric Depression Scale at or above cutoff (≥8) | (N = 52) 2 (3.85%) | (N = 219) 4 (1.83%) | χ2 = 0.792a | 0.325b |
| Process indicators | ||||
| History of noncompliance with treatment | (N = 22) 2 (9.09%) | (N = 62) 4 (6.45%) | χ2 = 0.171a | 0.650b |
| Compliance with treatment | (N = 44) 3 (6.82%) | (N = 289) 3 (1.04%) | χ2 = 7.211a | 0.032b |
a
χ2 test with df = 1.
b
Fisher's exact test.