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Table 1 Sociodemographic characteristics of focus group and cognitive interview participants

From: The development of a patient-reported outcome measure for assessing nighttime symptoms of chronic obstructive pulmonary disease

Characteristics

Focus groups N=27

Cognitive interviews N=10

Age, Mean (SD)

68.1 (8.7)

68.1 (6.4)

Gender, female, n (%)

14 (51.9%)

7 (70%)

Race/Ethnicity, n (%)

 White

24 (88.9%)

5 (50%)

 Black or African American

2 (7.4%)

5 (50%)

 Native American or Alaska Native

1 (3.7%)

0 (0%)

 Hispanic or Latino (not exclusive of race)

2 (7.4%)

0 (0%)

Clinical information (as reported by clinicians at recruiting sites)

GOLD stage, n (%)

 I

2 (7.4%)

2 (20%)

 II

15 (55.6%)

2 (20%)

 III

4 (14.8%)

4 (40%)

 IV

6 (22.2%)

2 (20%)

Current smoker, yes, n (%)

9 (33.3%)

2 (20%)

SGRQ-C a , Mean (SD)

Total score

47.3 (18.6)

53.9 (16.3)

Symptom domain

57.7 (22.3)

62.9 (17.2)

Activity domain

65.9 (24.0)

76.5 (18.5)

Impact domain

33.1 (19.3)

37.5 (22.7)

HADS b , Mean (SD)

Anxiety domain

4.7 (3.3)

7.0 (3.9)

Depression domain

4.4 (2.8)

5.2 (3.7)

  1. GOLD, Global initiative for chronic Obstructive Lung Disease; HADS, Hospital Anxiety and Depression Scale; SD, standard deviation; SGRQ-C, St. George’s Respiratory Questionnaire for Chronic obstructive pulmonary disease.
  2. a SGRQ-C scores range from 0 to 100, with higher scores indicating poorer health status.
  3. b Domain scores range from 0 (no depression or anxiety) to 21; Scores of 8–10 suggest mild cases, 11–15 moderate cases, and 16 or above severe cases.