. 2021 Jul 21;4(7):e2116589. doi: 10.1001/jamanetworkopen.2021.16589

Table 2. Association Between Treatment With Electroconvulsive Therapy and Suicide Risk in an Adjusted Model Stratified by Age Group and Severity of Depression^a.

Variable	aHR (95% CI)	P value	P value for interaction analyses	Total suicide events
Age groups, y
18-44	1.22 (0.68-2.16)	.51	Reference	75
45-64	0.54 (0.30-0.99)	.05	.04^b	76
≥65	0.30 (0.15-0.59)	.001	.001^b	59
Severity of depression
Moderate (F32.1, F33.1)^c	0.93 (0.46-1.87)	.84	Reference	75
Severe without psychosis (F32.2, F33.2)	0.65 (0.41-1.04)	.07	.42^d	99
Severe with psychosis (F32.3, F33.3)	0.20 (0.08-0.54)	.001	.01^d	36

Abbreviation: aHR, adjusted hazard ratio.

^{^a}

Cox regression model during 90 days of follow-up after date of admission, stratified by age group and severity of depression. Interactions analyses are reported in a separate column.

^{^b}

P values for interaction with 18-44 y.

^{^c}

Numbers represent International Statistical Classification of Diseases and Related Health Problems, Tenth Revision codes.

^{^d}

P values for interaction with moderate severity of depression.

Table 2. Association Between Treatment With Electroconvulsive Therapy and Suicide Risk in an Adjusted Model Stratified by Age Group and Severity of Depressiona.

Table 2. Association Between Treatment With Electroconvulsive Therapy and Suicide Risk in an Adjusted Model Stratified by Age Group and Severity of Depression^a.