Baseline characteristics
| All 1225 participants at baseline | |||
| Telehealthcare | Usual care | Difference | |
| n=578 | n=647 | Raw | |
| Age (years)* | 69.55 (9.36) | 70.33 (9.11) | −0.78 |
| Men (%)* | 48.27 (n=279) | 43.74 (n=283) | 4.53 |
| Marital status (%) | |||
| Married/in a relationship | 55.88 (n=323) | 54.25 (n=351) | 1.63 |
| Single | 20.42 (n=118) | 22.10 (n=143) | −1.68 |
| Widow/widower | 16.78 (n=97) | 16.54 (n=107) | 0.24 |
| Missing (%) | 6.92 (n=40) | 7.11 (n=46) | −0.19 |
| Smoking status (%) | |||
| Non-smokers | 59.34 (n=343) | 63.06 (n=408) | −3.72 |
| Smokers | 33.91 (n=196) | 29.21 (n=189) | 4.70 |
| Missing (%) | 6.75 (n=39) | 7.73 (n=50) | −0.98 |
| Duration of COPD (years) | 7.80 (6.23) | 7.70 (5.79) | 0.10 |
| Missing (%) | 14.01 (n=81) | 15.14 (n=98) | −1.13 |
| FEV1 (%) | 47.70 (18.05) | 48.37 (18.94) | −0.67 |
| Missing (%) | 18.51 (n=107) | 19.78 (n=128) | −1.27 |
| FVC(%) | 70.38 (20.02) | 74.34 (22.33) | −3.96 |
| Missing (%) | 34.43 (n=199) | 39.41 (n=255) | −4.98 |
| Comorbidities (%) | |||
| Diabetes | 10.21 (n=59) | 9.89 (n=64) | 0.32 |
| Coronary heart disease | 32.70 (n=189) | 31.84 (n=206) | 0.86 |
| Mental health problem | 4.84 (n=28) | 4.79 (n=31) | 0.05 |
| Musculoskeletal disorder | 24.91 (n=144) | 29.37 (n=190) | −4.46 |
| Cancer | 6.06 (n=35) | 4.79 (n=31) | 1.27 |
| Missing (%) | 8.13 (n=47) | 7.88 (n=51) | 0.25 |
| Baseline total costs (€)† | 6492 (14 150) | 4900 (7149) | 1.592 |
| Missing (%) | 13.66 (n=79) | 11.28 (n=73) | 2.38 |
| Baseline EQ5D | 0.706 (0.202) | 0.716 (0.185) | −0.01 |
| Missing (%) | 8.30 (n=48) | 8.19 (n=53) | 0.11 |
Data are mean (SD) or proportion (number of patients).
*Variable has no missing values.
†Baseline total costs are missing for three cost categories (help and care at home, community or district nurse and rehabilitation, see table 4) in four municipality districts.
COPD, chronic obstructive pulmonary disease; FEV1(%), forced expiratory volume in one second of predicted normal; FVC(%), forced vital capacity.