Table 1.

Two-part shared random cluster effect model for ventilator-free days in 2947 patients from the PART trial

Parameter	Estimate	Standard error	P-value
Part 1: multinomial logit model for odds of death without ROSC
Intercept	2.62	0.24	<0.001
Period 2	−0.25	0.20	0.244
Period 3	−0.02	0.21	0.939
Period 4	−0.50	0.28	0.096
Period 5	−0.37	0.81	0.655
Initial LT	−0.54	0.16	0.006
Part 1: multinomial logit model for odds of death after ROSC
Intercept	1.82	0.25	<0.001
Period 2	−0.35	0.21	0.131
Period 3	−0.04	0.22	0.844
Period 4	−0.25	0.29	0.396
Period 5	−0.01	0.82	0.995
Initial LT	−0.36	0.17	0.054
Part 2: beta-binomial model for the number of ventilator-free days in survivors
Intercept	1.60	0.23	<0.001
Period 2	−0.24	0.19	0.230
Period 3	−0.08	0.20	0.694
Period 4	0.22	0.29	0.453
Period 5	0.05	0.78	0.954
Initial LT	−0.05	0.15	0.765
	−0.87	0.23	0.003
	0.17	0.02
	0.46	014
log-likelihood	−3077.3
AIC	6196.5
BIC	6489.6