Table. 2—

Bronchodilator response by demographic variables

VariableAbsoluteRelative% predicted
Responsep-valueResponsep-valueResponsep-value
Sex
 Females86.6<0.001#4.200.308#3.070.299#
 Males127.34.363.19
Group
 SI112.20.776#4.330.534#3.160.543#
 UC111.04.233.09
LHS 3 smoking status
 SQ116.00.519#4.410.712#3.230.601#
 IQ111.84.303.15
 CS108.94.213.06
Methacholine Reactivity
 No response107.1<0.001#3.62<0.001#2.82<0.001#
 25 mg103.63.702.79
 10 mg109.74.303.12
 5 mg115.64.823.41
 1 mg151.36.734.57
 Diluent93.84.553.02
Age−0.200<0.001+−0.134<0.001+−0.157<0.001+
Baseline cigarettes·day−1−0.0320.013+−0.0440.001+−0.057<0.001+
Pack-yrs−0.108<0.001+−0.089<0.001+−0.109<0.001+
  • SI: special intervention; UC: usual care; LHS: lung health study; SQ: sustained quitters; IQ: intermediate quitters; CS: continuous smokers. #: p-value for ANOVA test of response differences within groups; : correlation; +: p-value for correlation of response by variable of interest.