Table 3.
Bivariate analysis—prevalence of reduced WAI and prevalence ratio according to work characteristics of Technical-Administrative Workers in Education at the Federal University of Juiz de Fora, Juiz de Fora, 2013 (N = 600)
| Variables | Total | Reduced WAI | PR | 95 % CI | p value | ||
|---|---|---|---|---|---|---|---|
| N | (%) | N | (p/ %) | ||||
| Number of jobs | |||||||
| One | 492 | (83.8) | 68 | (13.8) | 1 | ||
| Two or more jobs | 95 | (16.2) | 14 | (14.7) | 1.06 | 0.60–1.90 | 0.827 |
| Weekly working hours | |||||||
| ≤40 h | 453 | (78.5) | 62 | (13.7) | 1 | ||
| >40 h | 124 | (21.5) | 16 | (12.9) | 0.94 | 0.54–1.63 | 0.834 |
| Evening jobs | |||||||
| No | 472 | (80.7) | 62 | (13.1) | 1 | ||
| Yes | 113 | (19.3) | 18 | (15.9) | 0.98 | 0.92–1.04 | 0.471 |
| Social support at work | |||||||
| Strong social support | 443 | (76.5) | 43 | (9.7) | 1 | ||
| Low social support | 136 | (23.5) | 38 | (27.9) | 2.88 | 1.86–4.45 | 0.000 |
| Demand-control modela | |||||||
| Low strain job | 183 | (32.1) | 18 | (9.8) | 1 | ||
| Active job | 69 | (12.1) | 5 | (7.2) | 0.74 | 0.27–1.98 | 0.546 |
| Passive job | 236 | (41.3) | 34 | (14.4) | 1.46 | 0.83–2.59 | 0.190 |
| High strain job | 83 | (14.5) | 24 | (28.9) | 2.94 | 1.60–5.42 | 0.001 |
| Contact with the public | |||||||
| Indirect or no contact | 109 | (18.6) | 7 | (6.4) | 1 | ||
| Direct or direct and indirect | 478 | (81.4) | 75 | (15.7) | 2.44 | 1.13–5.30 | 0.024 |
| Type of work function | |||||||
| Mixed | 136 | (23.1) | 35 | (25.7) | 1 | ||
| Physical | 62 | (10.5) | 10 | (16.1) | 0.63 | 0.31–1.26 | 0.193 |
| Mental | 392 | (66.4) | 37 | (9.4) | 0.37 | 0.23–0.58 | 0.000 |
Differences in n totals are explained by the fact that some information regarding a few variables was lost. Data below 6 % not informed
WAI work ability index, PR prevalence ratio
95 % CI: 95 % confidence interval
a Karasek, 1979
Source: The author, 2013