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. 2020 Nov 4;17(21):8149. doi: 10.3390/ijerph17218149

Table 4.

Descriptive data of common work-related variables and association with IES-R standardized factorial score.

Healthcare Workers Media Professionals Grocery Workers Protective Service Workers
N (%) M (SD) t/F * p g2 N (%) M (SD) t/F * p g2 N (%) M (SD) t/F * p g2 N (%) M (SD) t/F * p g2
Experience in Previous Crises
No 160 (59.5) 0.27 (0.89) −0.18 0.86 0.02 71 (67.6) −0.23 (0.90) −0.17 0.87 0.03 88 (98.9) 0.17 (1.07) 1 54 (65.1) −0.78 (0.77) 0.30 0.77 0.07
Yes 109 (40.5) 0.29 (0.79) 34 (32.4) −0.20 (0.81) 1 (1.1) −1.34 29 (34.9) −0.84 (0.96)
Working Hours Per Week
Less than 10 h 12 (4.5) 0.08 (1.09) 1.55 0.19 0.02 8 (7.6) 0.24 (0.76) 3.43 0.01 2 0.12 8 (9.0) −0.25 (1.17) 1.19 0.32 0.05 4 (4.8) −1.33 (0.51) 1.34 0.26 0.06
10–20 h 8 (3.0) −0.19 (0.55) 8 (7.6) 0.16 (0.80) 7 (7.9) 0.63 (1.22) 2 (2.4) −0.69 (1.06)
20–30 h 26 (9.7) 0.53 (0.81) 8 (7.6) −0.82 (0.54) 24 (27.0) 0.42 (0.97) 7 (8.4) −0.86 (0.81)
30–40 h 108 (40.2) 0.23 (0.82) 37 (35.2) −0.48 (0.81) 32 (36.0) 0.01 (1.10) 55 (66.3) −0.86 (0.85)
Over 40 h 115 (42.8) 0.33 (0.85) 44 (41.9) −0.05 (0.90) 18 (20.2) 0.04 (1.05) 15 (18.1) −0.41 (0.80)
Availability of Personal Protection Equipment
No 7 (2.6) 0.69 (0.59) a 4.38 0.01 0.03 17 (16.2) −0.04 (0.93) 1.04 0.38 0.03 3 (3.4) .14 (0.89) 16 (19.3) −0.64 (0.95) 2.77 0.07 0.07
Yes, but not enough 184 (68.4) 0.33 (0.79) a,b 17 (16.2) −1.4 (0.89) 27 (30.3) 0.46 (1.16) 1.81 0.07 4 0.42 55 (66.3) −0.73 (0.82)
Yes, enough 78 (29) 0.11 (0.95) b 16 (15.2) −0.54 (0.75) 59 (66.3) 0.01 (1.02) 12 (14.5) −1.30 (0.55)
I telework full-time 55 (52.4) −0.21 (0.87)
Overworking during COVID-19 Crisis
No 166 (61.7) 0.20 (0.83) −2.06 0.04 0.26 42 (40.0) −0.46 (0.86) −2.38 0.02 0.47 55 (61.8) −0.05 (1.03) −2.32 0.02 0.51 65 (78.3) −0.84 (0.85) −0.96 0.34 0.25
Yes 103 (38.3) 0.42 (0.86) 63 (60.0) −0.06 (0.84) 34 (38.2) 0.48 (1.07) 18 (21.7) −0.63 (0.80)
M (SD) r/ρ ** p M (SD) r/ρ ** p M (SD) r/ρ ** p M (SD) r/ρ ** p
Extra Hours Last Week 11.64 (9.34) 0.11 0.28 6.10 (4.28) 0.25 0.06 7.80 (7.24) −0.11 0.56 8.83 (7.09) 0.17 0.50
Years of Experience 14.87 (10.85) 0.01 0.81 15.88 (10.97) −0.27 <0.01 13.44 (8.24) −0.10 0.34 16.29 (11.39) 0.01 0.96
Days Working during the Pandemic 20.13 (20.73) 0.04 0.55 13.18 (12.26) 0.17 0.08 31.22 (20.53) −0.23 0.03 12.35 (10.13) 0.10 0.35
Days since Last Day Off 2.42 (3.60) 0.05 0.42 3.81 (4.06) 0.14 0.16 2.66 (2.94) −0.33 < 0.01 1.84 (2.45) −0.08 0.47
Working as a Team 2.34 (0.77) −0.02 0.80 2.03 (0.96) −0.06 0.55 2.07 (0.88) −0.24 0.02 2.21 (0.80) −0.20 0.08
Time in Contact with People 3 2.11 (1.68) 0.00 0.97 3.48 (1.19) 0.03 0.83 3.47 (0.89) 0.14 0.22

* Differences in mean level between categories of dichotomous variables were assessed via t-tests, and Hedges’ g effect size statistic was obtained (interpretation: negligible < 0.20 < small < 0.50 < medium < 0.80 < large). For multiple-category variables, one-way ANOVAs were used, and categories with a different superscript letter show a significant difference between them in the psychological impact variable’s mean. In these cases, the effect size was assessed via η2 (interpretation: negligible < 0.01 < small < 0.06 < medium < 0.14 < large). ** Correlations with ordinal variables (e.g., working as a team and time in contact with people) were computed via Spearman’s correlation (ρ). Correlations with continuous variables were computed via Pearson’s correlation (r). The obtained statistics are themselves measures of effect size (interpretation: negligible < 0.10 < small < 0.30 < medium < 0.50 < large). 1 Analysis not performed because one group had only one case. 2 Tukey post-hoc analyses revealed no differences. 3 In healthcare providers, this question was not included because it was assumed that they are necessarily in constant touch with others. 4 As the first group had only 3 participants, it was excluded from the analysis, and a t-test between the two remaining groups was carried out.