Table 14Baseline Outcome Measures

Outcome variableHealth coached arm, mean (SD) [N] or % [No.] [N]Usual care arm, mean (SD) [N] or % [No.] [N]P value
Primary (study specific aim 1)
 SF-CRQ total scorea4.24 (1.22) [100]4.28 (1.23) [92].78
 SF-CRQ dyspnea subscale scorea4.39 (1.46) [99]4.63 (1.45) [91].26
Secondary (study specific aims 2-4)
 Rate of exacerbations per person-year0.95 (1.57) [100]0.92 (1.34) [92].90
 Exercise capacity, meters305 (83.1) [71]292 (77.5) [65].35
 Self-efficacy for managing COPD6.36 (2.23) [100]6.45 (2.11) [92].76
Others prespecified
 Patient-reported quality of care (PACIC)3.58 (0.98) [93]3.29 (1.20) [85].08
 COPD symptoms (CAT)20.6 (8.34) [100]20.9 (7.41) [92].77
 Lung function (FEV1 % predicted)0.55 (0.19) [79]0.60 (0.20) [73].11
 Currently smoking54.6% (54) [99]52.9% (45) [85].83
 Bed days due to COPD in past 4 wk2.75 (6.44) [99]3.86 (6.86) [90].25
 Adequate inhaler techniqueb12.6% (12) [95]6.0% (5) [83].14
 Knowledge questions
  Okay if short of breath exercising75.0% (75) [100]71.1% (64) [90].55
  Beneficial to stop smoking83.0% (83) [100]83.3% (75) [90].95
  Being on oxygen for a long period okay67.7% (67) [99]56.2% (50) [89].10
  Smoking does not help breathing97.0% (96) [99]94.4% (85) [90].39
 Utilization rate per person-yearc
  Outpatient visits6.62 (5.43) [100]6.53 (4.08) [92].90
  ED visits all1.66 (3.10) [100]1.24 (1.86) [92].25
  ED visits for COPD0.54 (1.26) [100]0.62 (1.19) [92].65
  ED visits for not for COPD1.12 (2.52) [100]0.62 (1.29) [92].08
  Hospitalizations all0.34 (0.73) [100]0.52 (0.97) [92].14
  Hospitalizations for COPD0.13 (0.39) [100]0.34 (0.77) [92].02
  Hospitalizations not for COPD0.21 (0.57) [100]0.18 (0.44) [92].73
Reported post hoc
 Depressive symptoms (PHQ >15)13.0% (13) [100]18.7% (17) [91].28
 Concordance with GOLD guidelines72.7% (72) [99]69.2% (63) [91].60

Abbreviations: CAT, COPD Assessment Test; COPD, chronic obstructive pulmonary disease; ED, emergency department; FEV1, forced expiratory volume at 1 second; GOLD, Global Initiative for Chronic Obstructive Lung Disease; PACIC, PACIC, Patient Assessment of Chronic Illness Care; PHQ, Patient Health Questionnaire; SF-CRQ, Short-form Chronic Respiratory Disease Questionnaire.

aHigher score indicates better QOL.

bFor participations with a prescription inhaler.

cMore than 12 months before enrollment.

From: Does Working with a Health Coach Help Patients with COPD Improve Their Quality of Life and Breathe Easier?

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Does Working with a Health Coach Help Patients with COPD Improve Their Quality of Life and Breathe Easier? [Internet]
Thom DH, Su G, Hessler D, et al.
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