Table 5. Longitudinal outcomes for patients who received prolonged mechanical ventilation and were still hospitalized on postoperative day 30 based on time of discharge and interval survival.

Patients hospitalized on:	Day 30	Day 60	Day 90	Day 180
	N=1,459	N=288	N=90	N<11*
Disposition prior to next interval:
Still Hospitalized	288 (20%)	90 (31%)	–*	–*
In-Hospital Death	320 (22%)	65 (23%)	28 (31%)	–*
Discharged to:
Home/Rehab	216 (15%)	43 (15%)	–*	–*
SNF	287 (20%)	52 (18%)	31 (34%)	–*
LTACH	275 (19%)	28 (10%)	–*	–*
Other	73 (5%)	10 (3%)	–*	–*
For those who died between:	31-60 days	61-90 days	91-180 days	181-365 days
	N=423	N=180	N=188	N=110
Proportion of time hospitalized†
Median (IQR)	100% (100-100)	85% (62-100)	57% (38-84)	32% (22-48)
Mean (SD)	96% (8.6)	80% (20)	61% (26)	39% (22)
Number of Readmissions†
Mean (SD)	0.28 (0.49)	0.60 (0.74)	0.93 (1.00)	2.18 (1.59)
For those alive on day:	Day 60	Day 90	Day 180	Day 365
	N=1,036	N=856	N=668	N=558
Proportion of time hospitalized‡
Median (IQR)	77% (62-100)	52% (42-72)	27% (22-38)	14% (11-19)
Mean (SD)	78% (18)	59% (21)	33% (16)	17% (9)
Number of Readmissions‡
Mean (SD)	1.27 (1.50)	1.36 (1.56)	1.47 (1.65)	1.33 (1.62)

^*Exact cell sizes <11 are suppressed due to CMS cell size requirement.

^†Date of index operation until death.

^‡Date of index operation until end of reference interval.