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Table 2 Bivariate analysis—prevalence of reduced WAI and prevalence ratio according to health conditions and life habits of technical-administrative workers in education at the Federal University of Juiz de Fora, Juiz de Fora, 2013 (N = 600)

From: Work ability and associated factors of Brazilian technical-administrative workers in education

Variables Total Reduced WAI PR 95 % CI p value
N (%) N (p/ %)
Self-assessed overall health status
 Good 516 (87.5) 54 (10.5) 1   
 Bad 74 (12.5) 28 (37.8) 3.61 2.29–5.71 0.000
Self-assessed overall dental status
 Good 436 (75.0) 53 (12.2) 1   
 Bad 145 (25.0) 28 (19.3) 1.59 1.00–2.51 0.048
Signs and symptoms of depression
 Absent 508 (89.8) 48 (9.4) 1   
 Present 58 (10.2) 28 (48.3) 5.11 3.21–8.14 0.000
Level of physical activity
 Active or very active 320 (54.8) 37 (11.6) 1   
 Insufficiently active 190 (32.5) 25 (13.2) 1.14 0.69–1.89 0.618
 Sedentary 74 (12.7) 19 (25.7) 2.22 1.23–3.86 0.005
Alcohol addiction
 Risk-free consumption 472 (81.2) 62 (13.1) 1   
 Risky consumption 98 (16.9) 14 (14.3) 1.09 0.61–1.94 0.777
 Addiction 11 (1.9) 5 (6.2) 3.46 1.39–8.61 0.008
Smoking
 Non smoker 513 (88.9) 68 (13.3) 1   
 Smoker 64 (11.1) 11 (17.2) 0.77 0.41–1.46 0.424
Social network (relatives)
 One or more relatives 495 (83.9) 56 (11.3) 1   
 None 95 (16.1) 26 (27.4) 2.42 1.52–3.85 0.000
Social network (friends)
 One or more friends 460 (78.0) 57 (12.4) 1   
 None 130 (22.0) 25 (19.2) 1.55 0.97–2.48 0.067
Social network (sports activities)
 Yes 185 (31.6) 17 (9.2) 1   
 No 400 (68.4) 63 (15.8) 1.71 1.00–2.93 0.032
Social network (meetings)
 Yes 264 (45.4) 30 (11.4) 1   
 No 317 (54.6) 50 (15.8) 1.39 0.88–2.18 0.156
Social network (volunteer work)
 Yes 127 (21.8) 15 (11.8) 1   
 No 456 (78.2) 66 (14.5) 1.23 0.70–2.15 0.477
Social network (religious activities)
 Yes 478 (81.3) 69 (14.4) 1   
 No 110 (18.7) 12 (10.9) 0.76 0.41–1.39 0.371
Social support
 Strong support 480 (85.0) 53 (11.0) 1   
 Low support 85 (15.0) 22 (25.9) 2.34 1.43–3.85 0.001
  1. Differences in n totals are explained by the fact that some information regarding a few variables was lost. Data below 6 % not informed
  2. WAI work ability index, PR prevalence ratio
  3. 95 % CI: 95 % confidence interval
  4. Source: The author, 2013