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Table 2 Clinical outcomes and resource utilization by definition of prolonged mechanical ventilation

From: Differences in one-year health outcomes and resource utilization by definition of prolonged mechanical ventilation: a prospective cohort study

Short-term MV (n = 524) DRG 541/542 (n = 267) MV ≥ 21 days (n = 114)  
Mortality (cumulative)
   In-hospital 227 (43%) 53 (20%)* 36 (31%)
   (care limited) 114 (50%) 24 (45%)* 16 (44%)
   2 months 257 (49%) 74 (28%)* 40 (35%)
   6 months 289 (55%) 115 (43%)* 61 (54%)
   12 months 308 (59%) 127 (48%)* 65 (58%)
Discharge disposition
   Home 90 (17%) 19 (7%)* 5 (4%)
   Rehabilitation facility 111 (21%) 77 (29%) 27 (24%)
   Nursing home 81 (15%) 60 (22%) 28 (25%)
   Ventilator facility 0 (0%) 45 (17%) 9 (8%)
   Other hospital 15 (4%) 13 (5%) 9 (8%)
   Dead 227 (43%) 53 (20%) 36 (31%)
Status at 1 year
   Home 196 (37%) 134 (50%)* 47 (41%)
   Rehabilitation facility 4 (1%) 2 (1%) 0 (0%)
   Nursing home 16 (3%) 4 (2%) 2 (2%)
   Dead 308 (59%) 127 (48%) 65 (57%)
Location of death
   Home 15 (5%) 3 (2%) 0 (0%)
   Rehab facility 2 (1%) 1 (1%) 0 (0%)
   Nursing facility 27 (9%) 24 (19%) 5 (8%)
   Ventilator facility 1 (< 1%) 9 (7%) 2 (3%)
   Hospital 262 (85%) 89 (70%) 57 (87%)
   Other 0 (0%) 1 (1%) 1 (2%)
   Ventilator days 6 (4, 9) 16 (10, 24)* 27 (23, 36)
   Reintubated 36 (7%) 46 (17%)* 25 (22%)
Ventilator days before
   Tracheostomy - 10 (5, 14) 14 (10, 20)
   n 0 (0%) 267 (100%) 88 (77%)
ICU length of stay 8 (5 to 12) 22 (14 to 31)* 30 (24 to 41)
Hospital length of stay 15 (9 to 21) 29 (22 to 38)* 39 (30 to 52)
Hospital costs/patient $40,968 ($25,773 to 65,959) $111,194* ($80,164 to 156,312) $152,709 ($115,565 to 221,959)
Costs/hospital survivor $120,054 $164,956* $266,105
Costs/1-year survivor $165,075 $266,105* $423,596
  1. Values are expressed as n (%), mean (standard deviation), or median (interquartile range). Statistical tests were performed between short-term ventilation and either DRG 541/542 or ventilation ≥ 21 days groups. P values by χ2 test (for percentages), two-sided t-tests (for means), and Wilcoxon rank sum test (medians). Costs are presented in 2005 US$. *P < 0.05 for comparison between short-term ventilation and DRG 541/542;P < 0.05 for comparison between short-term ventilation and ventilation ≥ 21 days. DRG, diagnosis related group; ICU, intensive care unit; MV, mechanical ventilation.