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Table 5 Validation of missing data assumptions on complete data patients

From: The IRYSS-COPD appropriateness study: objectives, methodology, and description of the prospective cohort

  Validation of the assumptions made at arrival N and % of missing data recovered with each assumption Validation of the assumptions made at the decision time N and % of missing data recovered with each assumption
Respiratory Rate 1. 91% 1. 307 (54.5%) 1. 88%
2. 90%
3. 64% (when FR<20), 70% (when FR[2024]) and 58% (FR>24)
1. 263 (19.6%)
2. 134 (10%)
3. 267 (19.9%)
pH 1. 90% 1. 167 (43.6%) 1. 97%
2. 98%
3. 98%
4. 91% (pH>=7.35), 63% (pH [7.26-7.35]) and 50% (pH<7.26)
1. 937 (44%)
2. 146 (6.9%)
3. 181 (8.5%)
4. 399 (18.7%)
PO2 1. 95% 1. 173 (42.4%) 1. 90% for O2 saturation >94%; 70% for O2 saturation <90%
2. 91%
3. 77% (PO2>60), 82% (PO2 (45-60]) and 63% (PO2 <=45)
4. 63% for O2 saturation >94%; 64% for O2 saturation <90%
1. 637 (29.8%)
2. 342 (16%)
3. 386 (18.1%)
4. 121 (5.7%)
PCO2 No assumptions were made   1. 90% if PCO2 at arrival normal
2. 86% (PCO2 <=45), 73% (PCO2 (45-55]) , 75% (PCO2 (55-65]) and 80% (PCO2>65)
1. 714 (33.5%)
2. 534 (25%)
  1. Numbers in cells indicated, first, the order of the assumption, as included in the manuscript text, and, then, the percentage of patients with complete data that fulfill that assumption.