Means (SD) of dimensions measured by the Hospital Survey on Patient Safety Culture using two computation methods (percentage of positive items and mean score), correlation between the two methods and the proportion of variance attributable to hospital sites and activity sectors within hospital sites among 1171 employees of a Swiss multisite hospital
| Number of items | Missing scores, N (%) | Percentage of positive responses, mean (SD) | Mean score (1–5), mean (SD) | Correlation between the percentage and the mean score | Percent variance attributable to | ||
|---|---|---|---|---|---|---|---|
| Hospital site | Sector within hospital site | ||||||
| Outcome dimensions | |||||||
| Overall perception of safety | 4 | 4 (0.3) | 45.4 (33.4) | 3.20 (0.74) | 0.87 | 0.0 | 14.2 |
| Frequency of event reporting | 3 | 133 (11.4) | 42.1 (42.1) | 3.22 (0.99) | 0.87 | 0.0 | 4.1 |
| Process dimensions (unit level): | |||||||
| Supervisor expectations and actions | 4 | 7 (0.6) | 64.0 (32.4) | 3.72 (0.68) | 0.87 | 4.1 | 5.4 |
| Organisational learning | 3 | 3 (0.3) | 66.2 (33.3) | 3.73 (0.61) | 0.86 | 0.0 | 4.7 |
| Teamwork within hospital units | 4 | 2 (0.2) | 79.4 (29.9) | 3.96 (0.68) | 0.86 | 0.2 | 9.0 |
| Communication openness | 3 | 11 (0.9) | 68.0 (33.5) | 3.84 (0.76) | 0.89 | 6.1 | 3.6 |
| Feedback and communication about error | 3 | 12 (1.0) | 57.2 (38.9) | 3.59 (0.87) | 0.90 | 0.0 | 6.3 |
| Non-punitive response to error | 3 | 6 (0.5) | 45.1 (35.5) | 3.30 (0.74) | 0.86 | 3.3 | 3.8 |
| Staffing | 4 | 3 (0.3) | 50.6 (33.4) | 3.36 (0.75) | 0.89 | 0.0 | 17.1 |
| Process dimensions (hospital level) | |||||||
| Hospital management support | 3 | 18 (1.5) | 28.1 (37.1) | 2.92 (0.82) | 0.82 | 2.5 | 4.5 |
| Teamwork across hospital units | 4 | 19 (1.6) | 42.7 (34.4) | 3.22 (0.62) | 0.87 | 2.6 | 0.1 |
| Hospital handoffs and transitions | 4 | 26 (2.2) | 35.3 (34.4) | 3.02 (0.70) | 0.85 | 1.1 | 6.9 |