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Table 3 Most frequently cited morning symptoms by subjects (Concept Elicitation)

From: Development of the chronic obstructive pulmonary disease morning symptom diary (COPD-MSD)

  SOB Phlegm Cough Wheeze Chest Tightness/Discomfort Nighttime Awakening/Sleep Disturbance Headache Exhaustion/Tiredness
Group 1 (n = 9)
Group 2 (n = 9)
Group 3 (n = 9)
Group 4 (n = 8)
Spontaneous (S) 35 24 27 10 16 7 4 8
Probed (P) 0 7 3 14 6 9 8 0
Total (S + P) 35 31 30 24 22 16 12 8