Peak expiratory flow in women

Predicted average peak expiratory flow (PEF) for normal women (liters/minute)

Age	Height (inches/centimeters)
Age	55/140	60/152	65/165	70/178	75/190
20	390	423	460	496	529
25	385	418	454	490	523
30	380	413	448	483	516
35	375	408	442	476	509
40	370	402	436	470	502
45	365	397	430	464	495
50	360	391	424	457	488
55	355	386	418	451	482
60	350	380	412	445	475
65	345	375	406	439	468
70	340	369	400	432	461

These values represent average normal values within 80 liters/minute. Predicted values for African American and Hispanic minorities are approximately 10 percent lower.

Data from: Leiner GC, Abramowitz S, Small MJ, et al. Expiratory Peak Flow Rate. Standard Values for Normal Subjects. Use as a Clinical Test of Ventilatory Function. Am Rev Respir Dis 1963; 88:644.

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