Fig. 1.

A comparison of the mean FSS and KATZ scores before and after treatment in the study group
| Pre-treatment | Post-treatment | p | % of change | |
|---|---|---|---|---|
| FSS | 4.57 ± 0.26 | 3.97 ± 0.23 | p < 0.05* | 13.13% |
| KATZ score | 2.98 ± 0.79 | 3.94 ± 0.77 | p < 0.05* | 32.2 % |
Comparison between groups regarding in pre – and post-treatment mean FSS and KATZ scores
| PBM group | Placebo group | Between groups | ||||
|---|---|---|---|---|---|---|
| Pre-treatment | Post-treatment | Pre-treatment | Post-treatment | Pre-treatment | Post-treatment | |
| FSS | 4.57 ± 0.26 | 3.97 ± 0.23 | 4.62 ± 0.25 | 4.25 ± 0.26 | p = 0.298 | p < 0.05* |
| KATZ score | 2.98 ± 0.79 | 3.94 ± 0.77 | 3.04 ± 0.86 | 3.62 ± 0.86 | p = 0.712 | p = 0.071 |
Demographic data and physical characteristics of patients in both groups
| Items | PBM group | Placebo group | Comparison | |
|---|---|---|---|---|
| Mean ± SD | Mean ± SD | t-value | P-value | |
| Age (years) | 63.48 ± 2.82 | 63.62 ± 2.87 | 0.246 | 0.807 |
| BMI (kg/m2) | 27.27 ± 1.25 | 27.44 ± 1.33 | 0.668 | 0.506 |
A comparison of the pre – and post-treatment FSS and KATZ scores for the placebo group
| Pre-treatment | Post-treatment | p | % of change | |
|---|---|---|---|---|
| FSS | 4.62 ± 0.25 | 4.25 ± 0.26 | p < 0.05* | 8.1% |
| KATZ score | 3.04 ± 0.86 | 3.62 ± 0.86 | p < 0.05* | 19.1 % |