Table 3

Relationships between breathing circuit resistance and lung function (pooled data)

	Gradient (SE)^3-150	r	p value
FVC	−1.02 (0.24)	−0.351	<0.001
FEV₁	−1.25 (0.29)	−0.436	<0.001
FEF_25-75%	−3.43 (0.92)	−0.101	NS
PEF	−4.58 (0.48)	−0.776	<0.001

↵3-150 Mean (SE) % change per cm H₂O/l/s.