Table 1:
Example of two data sets
| A | B | C | D | E | F | |
|---|---|---|---|---|---|---|
| 1 | In the following statements, please indicate your degree of agreement. | Never | Rarely | Sometimes | Often | Regularly |
| 2 | Do you or have you ever taken medication to regulate sleep? | -68 | -6 | 0 | 3 | 2 |
| 3 | Have you ever felt the need to miss work because you felt tired? | -62 | -9 | 0 | 6 | 0 |
Table 2:
Correlation coefficients
| Correlation value (+ or -) | Interpretation of correlation |
|---|---|
| 0,00 a 0,19 | Very weak or non-existent |
| 0,20 a 0,39 | Weak |
| 0,40 a 0,69 | Moderate |
| 0,70 a 0,89 | Strong |
| 0,90 a 1,00 | Very Strong |
[i] Source: Shimakura (2006)
Figure 1:
Statement ‘I feel that night work influences my health’
Source: Author, 2023
Figure 2:
Statement “I feel that shift work influences my health”
Source: Author, 2023
Figure 3:
Statement ‘I feel that shift work influences my safety in carrying out my duties’
Source: Author, 2023
Figure 4:
Taking medication to regulate sleep
Source: Author, 2023
Figure 5:
Relationship between taking medication and the amount of sleep
Source: Author, 2023
Figure 6:
Correlation between the influence of night work on health, taking medication and absences due to tiredness
Source: Author, 2023
Figure 7:
Correlation between the influence of shift work on health, taking medication and absences due to tiredness
Source: Author, 2023
Figure 8:
Correlation between the influence of night work on safety, taking medication and absences due to tiredness
Source: Author, 2023
Figure 9:
Correlation between the influence of shift work on safety, taking medication and absences due to tiredness
Source: Author, 2023