Table 4 Known groups validity – PaO2/FiO2 ratio
|  | Moderate ARDS mean (SD) | Moderate ARDS n | Severe ARDS mean (SD) | Severe ARDS n | Difference | P value | Confidence interval | Cohen’s D | |
|---|---|---|---|---|---|---|---|---|---|
EQ-5D-3 L (Utility) | 0.60 (0.39) | 141 | 0.58 (0.31) | 82 | 0.02 | 0.749 | −0.08 | 0.16 | 0.04 |
SF-6D (Utility) | 0.66 (0.16) | 138 | 0.65 (0.14) | 80 | 0.01 | 0.586 | −0.03 | 0.06 | 0.08 |
SF-12 PCS | 37.60 (12.49) | 131 | 35.66 (12.02) | 78 | 1.93 | 0.274 | −1.54 | 5.41 | 0.16 |
SF-12 MCS | 46.04 (12.80) | 131 | 44.41 (14.12) | 78 | 1.64 | 0.391 | −2.11 | 5.39 | 0.12 |
SGRQ Symptoms Score | 31.73 (27.31) | 140 | 37.15 (28.72) | 81 | −5.42 | 0.164 | −13.08 | 2.24 | −0.19 |
SGRQ Activity Score | 43.59 (31.69) | 120 | 50.62 (31.71) | 73 | −7.03 | 0.137 | −16.31 | 2.25 | −0.22 |
SGRQ Impact Score | 20.57 (22.14) | 120 | 24.65 (22.80) | 74 | −4.08 | 0.219 | −10.61 | 2.44 | −0.18 |
SGRQ Total Score | 37.14 (28.72) | 108 | 35.18 (23.98) | 67 | −5.03 | 0.182 | −12.44 | 2.38 | −0.21 |