Predicted body weight relationships for protective ventilation – unisex proposals from pre-term through to adult

BMC Pulmonary Medicine

Table 4 MBW model (unified curve, no adherence to PBW Male/Female formulae [19])

Segment #	Height/Length	Relationship	Reference data	Error % relative to reference
1	Centimeters: 25–33	PBW = 0.22 + 0.055 ⋅ (length − 25)	Median data: INTERGROWTH Pre-Term [24]	−8.3 < ϵ < +3.7
1	Centimeters: 25–33	length in cm, weight in kg	Median data: INTERGROWTH Pre-Term [24]	−8.3 < ϵ < +3.7
2	Centimeters: 33-45	PBW = 0.66 + 0.116 ⋅ (length − 33)	Median data: INTERGROWTH Pre-Term [24]	−7.6 < ϵ < +4.5
2	Centimeters: 33-45	length in cm, weight in kg	Median data: INTERGROWTH Pre-Term [24]	−7.6 < ϵ < +4.5
3	Centimeters: 45–105	PBW = 2.05 + 0.24 ⋅ (height − 45)	Median data: INTERGROWTH Pre-Term [24], WHO 45–110 cm [21]	−7.6 < ϵ < +4
3	Centimeters: 45–105	height in cm, weight in kg	Median data: INTERGROWTH Pre-Term [24], WHO 45–110 cm [21]	−7.6 < ϵ < +4
4	Centimeters: 105–133	PBW = 16.4 + 0.41 ⋅ (height − 105)	Median data: WHO 45–110 cm & 5-10yo [21], CDC 2-20yo [22]	−1.6 < ϵ < +2.4
4	Centimeters: 105–133	height in cm, weight in kg	Median data: WHO 45–110 cm & 5-10yo [21], CDC 2-20yo [22]	−1.6 < ϵ < +2.4
5	Centimeters: ≥ 133	PBW = 27.8 + 0.76 ⋅ (height − 133)	Median data: WHO 5-10yo [21], CDC 2-20yo [22]	−9.2 < ϵ < +0.9
5	Centimeters: ≥ 133	height in cm, weight in kg	Median data: WHO 5-10yo [21], CDC 2-20yo [22]	−9.2 < ϵ < +0.9

CDC Centers for Disease Control, kg kilograms, PBW predicted body weight, WHO World Health Organization

ISSN: 1471-2466