. Author manuscript; available in PMC: 2012 Dec 27.

Published in final edited form as: Crit Care Med. 2012 Aug;40(8):2281–2286. doi: 10.1097/CCM.0b013e3182533317

Table 6.

Univariate analysis for the time to withdraw treatment including whole sample (N = 173)

Parameter	Variable Estimate	Standard Error	χ²-Square	P	Hazard Ratio
Sex	0.16540	0.26207	0.3983	.5279	1.180
Spouse	−0.11379	0.26805	0.1802	.6712	0.892
Acute Physiology and Chronic Health Evaluation II score	0.08047	0.02699	8.8879	.0029	1.084
Good quality of communication Score (by 5-point intervals)	0.13193	0.03699	12.7227	.0004	1.141
Surrogate confidence	0.02072	0.05764	0.1292	.7193	1.021
No prior discussion	−0.57754	0.29424	3.8527	.0497	0.561
No prior surrogate experience	0.26468	0.24585	1.1591	.2817	1.303
Reversed doctor trust (0–4 scale)	−0.21148	0.15442	1.8757	.1708	0.809