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. 2020 Jul 1;15(7):e0234600. doi: 10.1371/journal.pone.0234600

Table 4. Predictors of perceived risk to become ill when infected by coronavirus (N = 3,540).

    Low risk will become ill in next two months versus
    Medium risk will become ill   High risk will become ill
  n % medium aOR (95% CI) n % high aOR (95% CI)
Pre-outbreak respiratory problems
    • no (ref.) 2,603 22.2*** 1 2,235 9.4*** 1
    • yes 564 31.4 1.42 (1.15–1.77)** 549 29.5 2.75 (2.11–3.57)***
Pre-outbreak heart problems
    • no (ref.) 3,014 23.5* 1 2,609 11.6*** 1
    • yes 154 31.2 0.96 (0.66–1.41) 175 39.4 1.97 (1.34–2.92)**
Pre-outbreak diabetes
    • no (ref.) 3,062 23.4* 1 2,667 12.1*** 1
    • yes 105 35.2 1.30 (0.85–1.99) 117 41.9 3.12 (2.02–4.82)***
Pre-outbreak anxiety and depression symptoms
    • no (ref.) 2,537 22.7** 1 2,211 11.3*** 1
    • yes 631 28.7 1.31 (1.04–1.63)* 573 21.5 1.51 (1.12–2.03)**
Pre-outbreak loneliness
    • no (ref.) 2,508 22.8*   2,180 11.2*** 1
    • yes 659 27.6 1.18 (0.95–1.46) 604 21.0 1.60 (1.21–2.13)**
Age (in years)
    • 18–34 (ref.) 897 15.5*** 1 805 5.8*** 1
    • 35–49 761 23.5 1.19 (0.90–1.56) 658 11.6 1.52 (0.98–2.37)
    • 50–64 803 25.2 1.22 (0.92–1.62) 715 15.9 2.01 (1.29–3.12)**
    • 65 or older 708 33.2 1.17 (0.76–1.80) 608 22.2 2.45 (1.32–4.57)**
Gender
    • male (ref.) 1,548 21.5**   1,411 13.9 1
    • female 1,620 26.1 1.17 (0.98–1.40) 1,373 12.8 0.86 (0.67–1.11)
Education
    • high (ref.) 1,326 19.8***   1,197 11.1*** 1
    • medium 1,147 23.5 1.28 (1.05–1.56)* 1,008 13.0 1.06 (0.80–1.41)
    • low 696 32.2   580 18.6 1.02 (0.74–1.41)
Married
    • yes (ref.) 1,513 27.2*** 1 1,294 14.8* 1
    • no 1,655 20.8 0.85 (0.71–1.03) 1,490 12.1 0.97 (0.75–1.26)
Employment status            
    • paid employment 1,657 20.9*** 1 1,445 8.9*** 1
    • self-employed 178 21.9 1.05 (0.71–1.54) 159 12.6 1.27 (0.74–2.16)
    • job seeker 68 23.5 1.03 (0.57–1.86) 58 10.3 0.81 (0.31–2.08)
    • student 264 9.8 0.45 (0.28–0.72)** 252 5.6 0.81 (0.42–1.57)
    • housekeeping 223 32.3 1.33 (0.94–1.88) 184 17.9 1.57 (0.94–2.62)
    • pensioner 565 34.9 1.90 (1.26–2.87)** 478 23.0 1.58 (0.90–2.77)
    • (partial) work disab. 105 38.1 1.75 (1.13–2.70)* 114 43.0 3.57 (2.22–5.74)***
    • other 109 23.9 0.98 (0.61–1.60) 94 11.7 0.75 (0.36–1.56)
Period participation
    • 0–4 days (ref.) 1,674 20.4*** 1 1,504 11.4*** 1
    • 5–9 days 458 24.2 1.18 (0.91–1.51) 396 12.4 1.24 (0.86–1.78)
    • 10–15 days 1036 29.2 1.76 (1.46–2.12)*** 885 17.2 2.10 (1.61–2.73)***

aOR = Odds Ratio adjusted for all other variables in table. 95 CI = 95% confidence interval of adjusted Odds ratio. Ref = reference category. Low risk = no to small chance (n = 2,412). Medium risk = between small and big chance (n = 757). High risk = big chance to absolute certain (n = 372). Results based on weighted data (gender, age, marital status). housekeeping = takes care of housekeeping. (partial) work disab. = has (partial) work disability. The asterisks near the percentages refer to the p-values of the chi-square tests, and the asterisks near the 95% CI’s refer to the p-values of the aOR’s.

* p < .05

** p < .01

*** p < .001.