Table. 4—

Three-weekly morning/evening peak flow and number of puffs per day of salbutamol

TiotropiumFormoterolTiotropium and formoterol
Peak flow L·min−1
  • Data are presented as mean±se. #: p<0.02 versus formoterol; : p<0.01 versus tiotropium and p<0.0001 versus formoterol; +: p<0.003 versus tiotropium plus formoterol. Means are adjusted for period, centre and patient within centre.