Table 2.
Descriptive Psychometric and Statistical Qualities of the Scales Used to Measure Assessments of PACS by Type of Use
| Construct variables | Intra-hospital use (n = 125) | Inter-hospital use (n = 30) | Mann–Whitney X2 (p value) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # Items | Alpha | Mean | SD | # Items | Alpha | Mean | SD | ||
| System quality | |||||||||
| Ease of use | 3 | 0.92 | 8.50 | 1.48 | 2 | 0.64 | 6.47 | 2.41 | 21.37 (0.000) |
| Screen monitor quality | 3 | 0.84 | 7.97 | 1.71 | n/a | n/a | n/a | n/a | n/a |
| Integration | 3 | 0.91 | 7.97 | 2.06 | 2 | 0.95 | 5.27 | 2.65 | 23.22 (0.000) |
| Reliability | 3 | 0.86 | 7.50 | 1.93 | n/a | n/a | n/a | n/a | n/a |
| Accessibility | 2 | 0.82 | 7.32 | 2.28 | 1 | – | 4.58 | 3.78 | 8.64 (0.003) |
| Perceived usefulness | 3 | 0.89 | 8.18 | 1.80 | n/a | n/a | n/a | n/a | n/a |
| Response time | 2 | 0.77 | 7.48 | 1.96 | 1 | – | 4.80 | 2.20 | 30.32 (0.000) |
| Overall measure | 19 | 0.92 | 7.89 | 1.36 | 6 | 0.76 | 5.41 | 2.03 | 36.67 (0.000) |
| Data quality | |||||||||
| Completeness | 1 | – | 8.98 | 1.48 | 1 | – | 7.80 | 2.23 | 10.09 (0.001) |
| Reliability and validity | 2 | 0.87 | 8.77 | 1.47 | 2 | 0.97 | 7.40 | 2.26 | 11.71 (0.001) |
| Availability | 1 | – | 8.68 | 1.86 | 1 | – | 6.50 | 2.76 | 19.66 (0.000) |
| Safety | 1 | – | 8.34 | 1.87 | 1 | – | 7.23 | 2.31 | 6.81 (0.009) |
| Integration of information | n/a | n/a | n/a | n/a | 2 | 0.95 | 6.17 | 2.92 | n/a |
| Overall measure | 5 | 0.92 | 8.70 | 1.45 | 7 | 0.91 | 6.97 | 2.21 | 20.01 (0.000) |
| Quality of technical support | 5 | 0.97 | 8.55 | 1.70 | |||||
| Use | |||||||||
| Frequency | 1 | – | 9.45 | 1.66 | 1 | – | 7.03 | 2.62 | 40.22 (0.000) |
| Intensity | 2 | 0.74 | 8.42 | 1.93 | |||||
| Overall satisfaction | 3 | 0.95 | 8.87 | 1.70 | |||||
| Benefits | |||||||||
| Productivity | 3 | 0.87 | 8.40 | 2.09 | 1 | – | 4.78 | 2.41 | 39.40 (0.000) |
| Quality | 4 | 0.86 | 7.77 | 1.82 | |||||
| Access to care | n/a | n/a | n/a | n/a | 4 | 0.79 | 5.65 | 2.09 | n/a |
| Overall measure | 7 | 0.91 | 7.90 | 1.91 | 5 | 0.55 | 5.46 | 1.66 | 39.99 (0.000) |
| Confirmation expectations | 2 | 0.78 | 7.97 | 1.85 | 1 | – | 5.66 | 2.58 | 20.25 (0.000) |
| Intended future use | 2 | 0.73 | 8.92 | 1.73 | 1 | – | 8.66 | 2.57 | 0.323 (0.570) |