Research Article
Psychosocial and Ergonomic Conditions at Work: Influence on the Probability of a Workplace Accident
Table 2
Variables considered for the Bayesian network. Source: data of 7th NSWC.
| Group | Variables | Categories | Observation | α-Cronbach |
| Accident | V1 | Yes 686 | No 8194 | | | | | |
| Sector | V2 | Agrarian 456 | Industry 1446 | Construction 596 | Services 6382 | | | |
| Demographics | V3: geographical zone | North 2313 | Mediterranean 2950 | Centre 1753 | South 1864 | | | | V4: age | ≤34 years 2201 | 34 < x ≤ 44 2909 | 44 < x ≤ 54 2497 | >54 years 1261 | DK/NA 12 | | | V5: educational studies | Primary 3158 | Further ed. 3203 | Higher ed. 2489 | DK/NA 30 | | | | V6: nationality | Spanish 8059 | Other 813 | DK/NA 8 | | | | | V7: gender | Man 4753 | Woman 4127 | | | | | |
| Employment | V8: contract | Permanent 5285 | Temporary 1858 | Others/self-emp. 1733 | DK/NA 4 | | | | V9: experience | ≤2 years 1764 | 2 < x ≤ 6 2568 | 6 < x ≤ 12 2118 | >12 years 2406 | DK/NA 24 | | | V10: hours a week | ≤38 h/wk. 2919 | 38 < x ≤ 40 3961 | >40 h/wk. 1906 | DK/NA 94 | | | | V11: level of employment | Employee 6311 | Management 1142 | Director 1395 | DK/NA 32 | | | | V12: hours | Flexi time 3468 | Full time 3161 | Shifts 2017 | Others 221 | DK/NA 13 | | | V13: staff | Micro <10 emp. 3935 | SME 10–250 3693 | Large >250 emp. 1252 | | | | |
| Safety | V14: risk evaluation | Yes 2993 | No 3971 | DK/NA 1916 | | | | | V15: protective gear | Yes 2902 | No 5204 | DK/NA 774 | | | | | V16: information | Yes 7653 | No 1118 | DK/NA 109 | | | | | V17: training | Yes 5164 | No 3613 | DK/NA 103 | | | | |
| Hygiene | V18: noise | Yes 3164 | No 5657 | DK/NA 59 | | | | | V19: vibrations | Yes 1249 | No 7601 | DK/NA 30 | | | | | V20: haz. rays/waves | Yes 746 | No 8099 | DK/NA 35 | | | | | V21: toxins | Yes 1347 | No 7510 | DK/NA 23 | | | | | V22: smoke (environ.) | Yes 1465 | No 7388 | DK/NA 27 | | | | | V23: infection | Yes 649 | No 8148 | DK/NA 83 | | | | |
| Ergonomics | V24: physical effort | Always 24 | Often 262 | At times 1767 | Rarely 4527 | Never 2300 | Multiple choice | 0.764 | V25: workload | Always 403 | Often 2667 | At times 3794 | Rarely 1855 | Never 161 | Multiple choice | 0.70 |
| Psychosocial | V26: social support | Always 3704 | Often 1615 | At times 1598 | Rarely 660 | Never 1303 | Multiple choice | 0.77 | V27: personal development | Always 3021 | Often 2996 | At times 1852 | Rarely 779 | Never 232 | Multiple choice | 0.798 | V28: independence at work | Always 1952 | Often 1671 | At times 2167 | Rarely 1652 | Never 1438 | Multiple choice | 0.902 | V29: concerns | Always 2882 | Often 4092 | At times 1506 | Rarely 369 | Never 31 | Multiple choice | 0.902 |
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DK/NA = do not know/no answer; SME = small and medium enterprise; Haz = hazardous.
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