Abstract P2 Table Time of day when symptoms were reported to be worse than usual (multiple answers possible)
Severe COPD patients (n  =  289)Non-severe COPD patients (n  =  514)
Morning46%*35%
Mid-day11%*3%
Afternoon16%*8%
Evening27%*20%
Night34%*23%
No particular time of day17%30%
  • *p<0.05 vs non-severe. COPD, chronic obstructive pulmonary disease.