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. 2020 Jan 31;15(1):e0227737. doi: 10.1371/journal.pone.0227737

Table 2. Readmission rates for all patients, suboptimal PIFR (S-PIFR) and optimal PIFR (O-PIFR).

CI: confidence interval; COPD: chronic obstructive pulmonary disease; OR: Odds Ratio, P values: S-PIFR vs O-PIFR.

Total (n = 75) S-PIFR (n = 42; 56%) O-PIFR (n = 33; 44%) OR (95%CI) p value
COPD readmission within 30 days, n (%) 12 (16) 7 (16.6) 5 (15.1) 0.65 (0.07, 5.6) 0.70
COPD readmission within 90 days, n (%) 20 (26.6) 12 (28.5) 8 (24.2) 0.82 (0.18, 3.6) 0.79
Emergency department visit for COPD within 30 days, n (%) 14 (18.6) 8 (19.0) 6 (18.1) 0.67 (0.13, 3.5) 0.64
Emergency department visit for COPD within 90 days, n (%) 22 (40.8) 11 (26.1) 11 (33.3) 1.01 (0.30, 3.4) 0.98
All cause readmission within 30 days, n (%) 16 (21.3) 11 (26.1) 5 (15.1) 0.36 (0.06, 2.3) 0.28
All cause readmission within 90 days, n (%) 28 (37.3) 17 (40.4) 11 (33.3) 0.71 (0.20, 2.5) 0.60