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Fig. 1 | Allergy, Asthma & Clinical Immunology

Fig. 1

From: Comparison of methacholine and mannitol challenges: importance of method of methacholine inhalation

Fig. 1

Individual data for methacholine PD20 in (μg) on the left and mannitol dose response slope (mg/% FEV1 fall) on the right. All values log transformed for analysis. The dotted red line, methacholine PD20 of 400 μg and mannitol DRS 42.3 (= mannitol PD15 of 635 mg), represents the cut points below which subjects are considered to have AHR to methacholine and mannitol respectively

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