Table 1.
Baseline characteristics of the 281 patients enrolled in the study and randomized to either TM (n=141) or usual care (n=140)
| Characteristics | TM group (N=141) | Usual care group (N=140) | P-value |
|---|---|---|---|
| Females, n (%) | 86 (61%) | 64 (45%) | 0.01a |
| Age in years, mean (SD) | 69.8 (9.0) | 69.4 (10.1) | 0.75b |
| BMI, kg/m2, mean (SD) | 24.9 (6.3) | 26.9 (7.0) | 0.01b |
| FEV1 % predicted, mean (SD) | 34.9 (13.3) | 33.8 (12.0) | 0.48b |
| MRC dyspnea score, mean (SD) | 3.5 (0.8) | 3.7 (0.9) | 0.09c |
| Pack-years, mean (SD) | 42.9 (26.4) | 41.0 (22.7) | 0.72b |
| LTOT, n (%) | 37 (26%) | 38 (27%) | 0.86a |
| Charlson comorbidity index, mean (SD) | 1.70 (1.49) | 1.96 (1.51) | 0.13 |
| Living alone | 58% | 52% | 0.27c |
| Number of hospital admissions for COPD exacerbation last year, mean (range) | 0.91 (0–7) | 1.22 (0–23) | 0.61a |
Note:
a
Mann–Whitney U test.
b
Unpaired t-test.
c
Fisher’s exact test.
Abbreviations: BMI, body mass index; FEV1, forced expiratory volume in 1 second; LTOT, long-term oxygen therapy; MRC, Medical Research Council; TM, telemonitoring.