Table 7.
Evaluation of quality of life using RAND 36-Item Health Survey
| Variable | Mean | Lower | Upper | Mean change | Lower | Upper | p |
|---|---|---|---|---|---|---|---|
| Physical functioning | |||||||
| Baseline | 75.7 | 69.3 | 82.1 | – | – | – | – |
| Week 12 | 86.5 | 80.1 | 92.9 | 10.8 | 4.9 | 16.7 | <0.001 |
| Week 28 | 85.3 | 78.4 | 92.2 | 9.6 | 3.2 | 16.1 | 0.004 |
| Physical role functioning | |||||||
| Baseline | 74.2 | 60.7 | 87.6 | – | – | – | – |
| Week 12 | 78.3 | 64.9 | 91.8 | 4.2 | −9.8 | 18.1 | 0.555 |
| Week 28 | 73.3 | 57.7 | 88.8 | −0.9 | −16.9 | 15.1 | 0.911 |
| Bodily pain | |||||||
| Baseline | 72.8 | 62.9 | 82.8 | – | – | – | – |
| Week 12 | 79.7 | 69.1 | 90.3 | 6.9 | −1.6 | 15.3 | 0.109 |
| Week 28 | 80.3 | 69.1 | 91.5 | 7.5 | −1.8 | 16.7 | 0.112 |
| General health | |||||||
| Baseline | 58.7 | 51.2 | 66.1 | – | – | – | – |
| Week 12 | 68.7 | 60.4 | 76.9 | 10.0 | 4.2 | 15.8 | <0.001 |
| Week 28 | 67.7 | 58.9 | 76.5 | 9.0 | 2.5 | 15.5 | 0.007 |
| Vitality | |||||||
| Baseline | 56.2 | 48.1 | 64.3 | – | – | – | – |
| Week 12 | 66.7 | 56.2 | 77.1 | 10.5 | 2.5 | 18.5 | 0.011 |
| Week 28 | 68.4 | 59.3 | 77.5 | 12.2 | 6.1 | 18.4 | <0.001 |
| Social functioning | |||||||
| Baseline | 78.4 | 70.6 | 86.3 | – | – | – | – |
| Week 12 | 89.3 | 79.8 | 98.8 | 10.9 | 4.3 | 17.4 | 0.001 |
| Week 28 | 87.4 | 77.4 | 97.3 | 8.9 | 1.8 | 16.1 | 0.015 |
| Emotional role functioning | |||||||
| Baseline | 81.1 | 71.3 | 90.9 | – | – | – | – |
| Week 12 | 84.5 | 71.6 | 97.3 | 3.4 | −9.1 | 15.8 | 0.592 |
| Week 28 | 83.8 | 69.7 | 97.8 | 2.7 | −11.0 | 16.3 | 0.699 |
| Mental health | |||||||
| Baseline | 73.2 | 67.0 | 79.4 | – | – | – | – |
| Week 12 | 82.0 | 75.3 | 88.7 | 8.8 | 3.2 | 14.4 | 0.003 |
| Week 28 | 78.6 | 71.8 | 85.3 | 5.4 | −0.4 | 11.1 | 0.067 |
n=30. The percentage scores range from 0% (lowest or worst possible level of functioning) to 100% (highest or best possible level of functioning). The mean values, mean changes, and 95% confidence interval with upper and lower limits are given for eight health concepts at inclusion (baseline); 12 weeks after diet intervention; and 16 weeks after the end of diet intervention (week 28). Comparisons were made between each time point and baseline by using linear mixed effect models. A value of p<0.05 is considered statistically significant.