Compare the means of each pair of groups using the Bonferroni method?

Pulmonary Disease

Twenty-two young asthmatic volunteers were studied to assess the short-term effects of sulfur dioxide (SO₂) exposure under various conditions [12]. The baseline data in Table 12.30 were presented regarding bronchial reactivity to SO₂ stratified by lung function (as defined by forced expiratory volume / forced vital capacity [FEV₁/FVC]) at screening.

Table 12.30: Relationship of bronchial reactivity to SO₂ (cm H₂O/s) grouped by lung function at screening among 22 asthmatic volunteers

 

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Lung-function group Group B FEV JÉVC 75-84% Group C FEV,FVC 2 85% Group A FEV,/FVC S74% 20.8 7.5 9.2 4.1 7.5 2.0 30.0 11.9 2.5 6.1 24.7 4.5 13.8 3.1 7.5 8.0 4.7 28.1 10.3 10.0 5.1 2.2