Table 3 Bochum reference formulas for ventilatory lung function in healthy non-smoking males aged 20 to 90 years (n = 251).

VC

Y = 0.0631.H - 0.0312.A - 4.960

0.73

0.58

0.96

FVC

Y = 0.0615.H - 0.0308.A - 4.673

0.74

0.58

0.96

FEV₁

Y = 0.0431.H - 0.0346.A - 2.114

0.78

0.49

0.81

FEV₁ %FVC

Y = -0.1141.H - 0.2001.A + 110

0.32

5.72

9.38

PEF

Y = 0.0742.H - 0.0538.A + 1.3032

0.47

1.60

2.63

MEF₇₅

Y = 0.0579.H - 0.0227.A - 1.3032

0.08

1.73

2.85

MEF₅₀

Y = 0.0211.H - 0.0449.A + 3.270

0.41

1.26

2.07

MEF₂₅

Y = 0.0205.H - 0.0400.A - 0.800

0.31

0.68

1.12