Table 2 Means for matching variables
From: Selecting a comparison group for 5-year oral and pharyngeal cancer survivors: Two methods
| Â | Sample Size* | Mean (S.D.) | ||||
|---|---|---|---|---|---|---|
Group | Survivor | Peer | Listed | Survivor | Peer | Listed |
Variable | Â | Â | Â | Â | Â | Â |
Age (yrs)** | 100 | 44 | 96 | 64.90 (10.09) | 57.40 (13.9) | 64.4 (10.08) |
Days of Smoking in the past 30 | 100 | 44 | 96 | 4.25 (10.3) | 6.29 (11.7) | 2.54 (8.13) |
Lifetime duration of smoking | 60 | 27 | 53 | 36.60 (15.0) | 30.40(14.2) | 28.90 (15.1) |
How often do you drink alcohol? (during month) | 100 | 44 | 95 | 1.50 (1.63) | 1.50 (1.30) | 1.64 (1.64) |
How much alcohol do you drink on a typical day when you are drinking? (number of drinks) | 99 | 42 | 95 | 0.66 (0.70) | 0.98 (0.87) | 0.77 (0.74) |
How often do you drink six drinks of alcohol in one day? (during month) | 100 | 34 | 95 | 0.78 (0.95) | 1.03 (1.31) | 0.82 (0.82) |