Table 4 Means and ceiling effects of measures by smoking group and country
| Â | German sample | US sample | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|  | Current smokers (N = 125) | Former smokers (N = 54) | Ever smokers (N = 179) | Current smokers (N = 149) | Former smokers (N = 110) | Ever smokers (N = 259) | ||||||
Measurea | Mean (SD) | % Best | Mean (SD) | % Best | Mean (SD) | % Best | Mean (SD) | % Best | Mean (SD) | % Best | Mean (SD) | % Best |
Smoking-Specific | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Symptoms (−) | 58.2 (8.6) | 0.0 | 48.8 (6.6) | 5.6 | 55.4 (9.1) | 1.7 | 55.1(10.4) | 4.0 | 45.3(5.4) | 10.9 | 50.9 (9.9) | 6.9 |
Impact (−) | 50.3 (6.4) | 40.8 | 45.6 (3.0) | 94.4 | 48.9 (6.0) | 57.0 | 54.0 (9.8) | 26.8 | 45.8 (3.3) | 92.7 | 50.5 (8.8) | 54.8 |
SF-36 Generic | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
PCS (+) | 57.1 (4.3) | -- | 56.5 (4.2) | -- | 56.9 (4.3) | -- | 52.5 (7.6) | -- | 55.0 (7.1) | -- | 53.6 (7.5) | -- |
MCS (+) | 54.6 (5.6) | -- | 53.3 (5.8) | -- | 54.2 (5.7) | -- | 47.9 (11.6) | -- | 50.0 (9.8) | -- | 48.8 (10.9) | -- |