Table 2.
Unadjusted mean scores across wage system groups.
| Total | Hourly/monthly paid (H) | Individual performance wage (I) | Group performance wage (G) | Univariate ANOVA F-test | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | p value | Partial eta square | |
| Physical exertion (Borg CR-10) | 5.82 | (2.2) | 5.45 | (2.2) | 5.99 | (2.3) | 6.63∗∗ | (2.0) | <0.001 | 0.05 |
| Time pressure | 3.10 | (0.9) | 3.00 | (0.9) | 3.09 | (1.0) | 3.37∗∗ | (0.9) | 0.002 | 0.03 |
| Fatigue | ||||||||||
| Total score | 2.79 | (0.7) | 2.73 | (0.7) | 2.88 | (0.7) | 2.87 | (0.7) | 0.105 | — |
| General | 3.01 | (0.8) | 3.00 | (0.8) | 2.96 | (0.8) | 3.07 | (0.8) | 0.581 | — |
| Back | 2.92 | (0.9) | 2.87 | (1.0) | 3.06 | (0.9) | 2.94 | (0.9) | 0.291 | — |
| Neck/shoulder | 2.80 | (1.0) | 2.72 | (1.0) | 2.94 | (0.9) | 2.89 | (0.9) | 0.117 | — |
| Arms/wrist | 2.67 | (0.9) | 2.58 | (0.9) | 2.73 | (1.0) | 2.86∗∗ | (0.9) | 0.023 | 0.02 |
| Legs | 2.83 | (0.9) | 2.78 | (1.0) | 2.87 | (1.0) | 2.93 | (0.9) | 0.357 | — |
| Head (mental) | 2.51 | (0.9) | 2.47 | (0.9) | 2.69 | (1.0) | 2.49 | (0.8) | 0.191 | — |
| Pain | ||||||||||
| Neck | 3.04 | (2.3) | 2.95 | (2.4) | 3.2 | (2.3) | 3.18 | (2.2) | 0.605 | — |
| Shoulder | 3.84 | (2.6) | 3.66 | (2.6) | 4.13 | (2.4) | 4.10 | (2.6) | 0.244 | — |
| Elbows | 2.61 | (2.2) | 2.42 | (2.2) | 2.77 | (2.1) | 2.98 | (2.3) | 0.114 | — |
| Hands/wrists | 3.22 | (2.3) | 3.09 | (2.3) | 3.12 | (2.0) | 3.57 | (2.4) | 0.219 | — |
| Fingers | 2.88 | (2.3) | 2.92 | (2.4) | 2.89 | (2.1) | 2.77 | (2.2) | 0.858 | — |
| Lower back | 4.16 | (2.9) | 3.99 | (2.9) | 4.67 | (2.9) | 4.24 | (2.8) | 0.235 | — |
| Hips | 2.63 | (2.3) | 2.63 | (2.5) | 3.12 | (2.1) | 2.34 | (2.0) | 0.132 | — |
| Knees | 4.27 | (2.8) | 4.25 | (2.9) | 4.13 | (2.3) | 4.4 | (2.9) | 0.841 | — |
| Feet/ankles | 2.93 | (2.4) | 2.89 | (2.5) | 3.88† | (2.6) | 2.4∗ | (1.9) | 0.001 | 0.04 |
| Head | 2.19 | (1.9) | 2.17 | (1.8) | 2.48 | (2.3) | 2.04 | (1.7) | 0.362 | — |
Note: ∗post hoc Bonferroni adjusted p value (p < 0.05) between G and I.
∗∗Post hoc Bonferroni adjusted p value (p < 0.05) between G and H.
†Post hoc Bonferroni adjusted p value (p < 0.05) between I and H.
Borg-CR-10 scores range from 0 to 11: 0: not all exerted, 10: extremely strong, and 11: maximal exertion. Time pressure score range between 1 and 5: 1: always and 5: never in relation to the question: How often can you work at an nice and easy pace and still get your work done? Fatigue scores range from 1 to 5: 1: not fatigued and 5: exhausted. Pain scores range from 1 to 5: 1: every day and 5: never.