Table 3 ICU patients’ height and weight estimations and calculated tidal volumes
Measure (cm) | Correlation (r) | 95 % CI for r | Bias (%) (±1.96 SD) | |
|---|---|---|---|---|
Measured height | 169.5 ± 8.1 | / | / | / |
Estimated height | 170.2 ± 8.1 | 0.77 | 0.64–0.86 | 0.4 (6.8/−6) |
Height estimations | ||||
Hand | 163.3 ± 7.4 | 0.53 | 0.32–0.70 | −3.8 (5.0/−12.7) |
Ulna | 165.2 ± 7.2 | 0.51 | 0.29–0.68 | −2.6 (6.4/−11.5) |
Tibia | 174.2 ± 7.6 | 0.61 | 0.41–0.75 | 2.7 (10.9/−5.5) |
Simplified Chumlea | 162.2 ± 9.0 | 0.78 | 0.66–0.87 | −4.5 (2.5/−11.5) |
Weight (kg) | ||||
PBW estimations | (64.1 ± 8.8) | |||
Hand | 58.5 ± 8.6 | 0.65 | 0.46–0.77 | −10 (12.7/−32.8) |
Ulna | 60.2 ± 7.8 | 0.64 | 0.45–0.77 | −6.6 (14.3/−27.5) |
Tibia | 68.4 ± 7.9 | 0.71 | 0.55–0.82 | 6.2 (24/−11.6) |
Simplified Chumlea | 57.5 ± 9.9 | 0.81 | 0.70–0.88 | −12.2 (12/−36.4) |
IBW estimations | (64.1 ± 6.5) | |||
Hand | 59.7 ± 5.7 | 0.62 | 0.43–0.76 | −7.2 (9.7/−24) |
Ulna | 60.9 ± 5.5 | 0.61 | 0.42-0.75 | −5.0 (11.8/−21.8) |
Tibia | 67.2 ± 6.0 | 0.71 | 0.55-0.82 | 4.7 (19.8/−10.4) |
Simplified Chumlea | 59.0 ± 6.6 | 0.81 | 0.70–0.89 | −8.5 (4.7/−21.6) |
Tidal volume (mL/kg) | ||||
Vt over ABW | (7.0 ± 1.4) | / | / | / |
VT over PBW | (7.9 ± 1.0) | / | / | / |
Hand | 8.7 ± 1.3 | 0.67 | 0.50–0.79 | 7.2 (24.1/−9.6) |
Ulna | 8.4 ± 1.3 | 0.69 | 0.53–0.81 | 5.0 (21.8/−11.8) |
Tibia | 7.4 ± 1.0 | 0.66 | 0.48–0.78 | −4.7 (10.4/−19.8) |
Simplified Chumlea | 8.9 ± 1.7 | 0.84 | 0.74–0.90 | 8.5 (21.6/−4.7) |
VT over IBW | (7.8 ± 0.8) | / | / | / |
Hand | 8.4 ± 1.0 | 0.71 | 0.55–0.82 | 9.6 (32.2/−13) |
Ulna | 8.2 ± 1.0 | 0.75 | 0.61–0.84 | 6.2 (28.8/−16.4) |
Tibia | 7.5 ± 0.8 | 0.74 | 0.60–0.84 | −6.6 (13.9/−27.1) |
Simplified Chumlea | 8.5 ± 1.1 | 0.85 | 0.76–0.91 | 11.8 (31.4/−7.8) |