Question

Twenty-two young asthmatic volunteers were studied to assess the short-term effects of sulfur dioxide (SO2) exposure under various conditions. The baseline data in Table 3 were presented regarding bronchial reactivity to SO2 stratifed by lung function (as defined by forced expiratory volume / forced vital capacity [FEV1/FVC]) at screening.

Lung-function group Group A FEV,/FVO Group B FEV/FVO 75-84% Group C FEV,/FVO 85% 7.5 7.5 11.9 4.5 9.2 2.0 20.8 30.0 24.7 13.8 2.5 7.5 8.0 4.7 28.1 10.3 10.0 2.2

Notice: Question 2 and 3 should be Interprete

1 Test the hypothesis that there is an overall mean difference in bronchial reactivity among the three lung-function groups by SPSS.

2 Compare the means of each pair of groups using the LSD method and SNK method by SPSS.

3 Compare the means of each pair of groups using the Bonferroni method by SPSS

Answer 1

リirre сус