Table 3 Mean (SD) SF-36 and SF-12 summary scores and effect sizes by subgroups
From: Validity of SF-12 summary scores in a Greek general population
Variable | N (%) | Physical Component Summary (PCS) | Mental Component Summary (MCS) | ||||
|---|---|---|---|---|---|---|---|
| Â | Â | SF-36 | SF-12 | Effect* size | SF-36 | SF-12 | Effect* size |
Total sample | 1005 (100) | 50.17 (11.80) | 49.42 (10.56) | -0.06 | 47.59 (9.34) | 48.91 (9.20) | 0.14 |
Gender | Â | Â | Â | Â | Â | Â | Â |
   Male | 483 (48.1) | 51.71 (11.32) | 50.49 (10.27) | -0.11 | 48.34 (8.66) | 49.90 (8.34) | 0.19 |
   Female | 522 (51.9) | 48.74 (12.06) | 48.44 (10.75) | -0.02 | 46.90 (9.88) | 47.98 (9.84) | 0.11 |
Age (years) | Â | Â | Â | Â | Â | Â | Â |
   18–24 | 115 (11.4) | 56.70 (5.14) | 55.25 (4.40) | -0.28 | 51.00 (5.77) | 52.45 (5.71) | 0.25 |
   25–34 | 185 (18.4) | 56.47 (5.12) | 54.88 (4.38) | -0.31 | 49.58 (8.07) | 51.52 (7.53) | 0.24 |
   35–44 | 180 (17.9) | 54.44 (7.27) | 53.51 (6.44) | -0.13 | 48.29 (8.29) | 50.18 (8.08) | 0.23 |
   45–54 | 151 (15.0) | 51.90 (10.11) | 51.10 (9.31) | -0.08 | 46.49 (10.00) | 47.59 (10.00) | 0.11 |
   55–64 | 150 (15.0) | 45.87 (13.07) | 45.26 (11.68) | -0.05 | 45.43 (10.77) | 47.09 (10.27) | 0.15 |
   ≥65 | 224 (22.3) | 39.89 (13.28) | 40.30 (11.87) | 0.03 | 45.85 (10.25) | 46.00 (10.09) | 0.01 |
Education | Â | Â | Â | Â | Â | Â | Â |
   <9 years | 334 (33.2) | 43.28 (13.74) | 43.29 (12.21) | 0.00 | 45.12 (10.29) | 45.89 (10.27) | 0.07 |
   9–12 years | 422 (42.0) | 53.36 (9.30) | 52.13 (8.35) | -0.13 | 48.34 (8.84) | 49.99 (8.55) | 0.19 |
   >12 years | 249 (24.8) | 54.00 (8.21) | 53.08 (7.52) | -0.11 | 49.65 (8.04) | 51.12 (7.57) | 0.18 |
Marital status | Â | Â | Â | Â | Â | Â | Â |
   Single | 244 (24.3) | 55.34 (7.99) | 54.02 (6.94) | -0.17 | 49.78 (7.37) | 51.35 (7.18) | 0.21 |
   Married | 646 (64.3) | 49.62 (11.77) | 48.84 (10.72) | -0.07 | 47.31 (9.46) | 48.71 (9.22) | 0.15 |
   Divorced/Widowed | 115 (11.4) | 42.26 (13.61) | 42.97 (11.88) | 0.05 | 44.55 (11.21) | 44.85 (11.14) | 0.03 |
Employment | Â | Â | Â | Â | Â | Â | Â |
   Working | 499 (49.7) | 54.41 (7.97) | 53.31 (7.05) | -0.14 | 48.67 (8.06) | 50.39 (7.79) | 0.21 |
   Retired | 227 (22.6) | 40.38 (13.98) | 40.52 (12.45) | 0.01 | 46.03 (10.72) | 46.39 (10.48) | 0.03 |
   House keeping | 177 (17.6) | 48.13 (11.76) | 47.65 (10.43) | -0.04 | 46.36 (10.42) | 47.63 (10.59) | 0.12 |
   Student | 67 (6.6) | 55.45 (7.06) | 54.10 (6.49) | -0.19 | 50.38 (7.11) | 51.72 (6.33) | 0.19 |
   Unemployed | 35 (3.5) | 53.36 (8.94) | 51.72 (8.76) | -0.18 | 43.21 (10.96) | 45.09 (10.30) | 0.17 |
Chronic Disease (1 or more) | Â | Â | Â | Â | Â | Â | Â |
   Yes | 360 (35.8) | 42.45 (13.71) | 42.45 (12.29) | 0.00 | 45.07 (10.45) | 45.89 (10.46) | 0.08 |
   No | 645 (64.2) | 54.48 (7.78) | 53.32 (6.88) | -0.15 | 49.00 (8.33) | 50.59 (7.94) | 0.19 |
Physician Visit (past month) | Â | Â | Â | Â | Â | Â | Â |
   Yes | 297 (29.6) | 43.05 (13.69) | 42.95 (12.54) | -0.01 | 45.55 (10.80) | 46.36 (10.61) | 0.08 |
   No | 702 (69.9) | 53.15 (9.43) | 52.14 (8.39) | -0.11 | 48.45 (8.51) | 49.97 (8.30) | 0.18 |
Hospitalization (past year) | Â | Â | Â | Â | Â | Â | Â |
   None | 880 (87.6) | 51.29 (10.97) | 50.49 (9.71) | -0.07 | 47.91 (9.03) | 49.28 (8.94) | 0.15 |
   Once | 85 (8.5) | 44.29 (14.41) | 44.05 (13.12) | -0.02 | 46.13 (10.38) | 46.60 (9.65) | 0.05 |
   >Once | 30 (3.0) | 36.83 (12.89) | 36.40 (12.25) | -0.03 | 40.41 (11.56) | 42.13 (11.25) | 0.15 |