| SF-36 Scales | Control parents n = 45 | PDD-NOS n = 44 | Moderate Autism n = 48 | Severe Autism n = 32 | ||
| Mean (SD) | Mean (SD) | Mean (SD) | HRQOL Decrease | Mean (SD) | HRQOL Decrease | |
| Physical Functioning | 95 (10) | 91 (19) | 92 (19) | 3 | 89 (16)* | 6 |
| Role-Physical | 90 (20) | 85 (25) | 89 (24) | 1 | 69 (38)* | 21 |
| Bodily Pain | 85 (16) | 85 (21) | 83 (24) | 2 | 78 (28) | 7 |
| General Health | 72 (14) | 73 (17) | 73 (14) | 0 | 65 (18) | 7 |
| Vitality | 61 (13) | 66 (21) | 62 (19) | 0 | 54 (26) | 7 |
| Social Functioning | 84 (18) | 86 (20) | 81 (22) | 3 | 74 (28)* | 10 |
| Role-Emotional | 87 (28) | 85 (30) | 85 (30) | 2 | 68 (37)* | 19 |
| Mental Health | 75 (13) | 75 (18) | 66 (20)* | 9 | 63 (26)* | 12 |
| PCS | 54 (6) | 53 (7) | 54 (7) | 0 | 51 (6)* | 3 |
| MCS | 49 (8) | 50 (11) | 46 (11) | 3 | 43 (13)* | 6 |