Table 5.
Descriptive statistics, reliability and inter-correlation of the research variables
| Variable (range) | mean | s.d. | α a | VIF b | 1. | 2. | 3. | 4. | 5. | 6. | 7. | 8. | 9. | 10. | 11. | 12. | 13. | 14. | 15. | 16. | 17. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Performance Benefits (1–5) | |||||||||||||||||||||
| 1. Quality of Care | 2.9 | 1.0 | .91 | - | - | ||||||||||||||||
| 2. Efficiency of physician | 2.9 | 1.0 | .91 | - | .82 | - | |||||||||||||||
| 3. Operational Performance | 3.0 | 0.9 | .90 | - | .77 | .84 | - | ||||||||||||||
| 4. Economic Performance | 2.7 | 1.0 | .73 | - | .58 | .68 | .74 | - | |||||||||||||
| 5. Social Performance | 2.5 | 1.0 | .82 | - | .71 | .76 | .79 | .64 | - | ||||||||||||
| Extended EMR Use (0–1)c | |||||||||||||||||||||
| 6. Use of Clinical functionalities | .58 | .24 | - | 1.39 | .42 | .41 | .40 | .29 | .34 | - | |||||||||||
| 7. Use of Communication funct. | .34 | .26 | - | 1.38 | .29 | .30 | .28 | .23 | .20 | .51 | - | ||||||||||
| 8. Use of Administrative funct. | .81 | .30 | - | 1.11 | .19 | .21 | .21 | .07 | .08 | .28 | .27 | - | |||||||||
| EMR User Satisfaction (1–5) | |||||||||||||||||||||
| 9. With Clinical functionalities | 3.7 | 1.0 | .93 | - | .39 | .39 | .40 | .25 | .32 | .14 | .13 | .12 | - | ||||||||
| 10. With Communication funct. | 3.8 | 1.1 | .89 | - | .29 | .32 | .33 | .22 | .24 | .01 | -.02 | .13 | .51 | - | |||||||
| 11. With Administrative funct. | 4.2 | 0.9 | .77 | - | .23 | .26 | .27 | .17 | .20 | .19 | .16 | .06 | .65 | .43 | - | ||||||
| Perceived Ease of EMR Use (1–5) | |||||||||||||||||||||
| 12. With regard to Patients | 2.8 | 1.2 | .61 | - | .41 | .40 | .42 | .34 | .27 | .34 | .23 | .13 | .23 | .20 | .24 | - | |||||
| 13. With regard to Care providers | 1.9 | 0.9 | .85 | - | .40 | .38 | .35 | .29 | .33 | .23 | .20 | .09 | .19 | .08 | .11 | .37 | - | ||||
| EMR Functional Coverage (0–1)d | |||||||||||||||||||||
| 14. Availability of Clinical funct. | .67 | .22 | - | 1.39 | .36 | .35 | .34 | .23 | .30 | .83 | .43 | .24 | .11 | .01 | .12 | .25 | .23 | - | |||
| 15. Availability of Comm. funct. | .45 | .25 | - | 1.34 | .26 | .25 | .24 | .20 | .20 | .43 | .80 | .22 | .17 | -.03 | .14 | .19 | .18 | .50 | - | ||
| 16. Availability of Admin. funct. | .90 | .22 | - | 1.08 | .17 | .14 | .19 | .04 | .10 | .23 | .15 | .69 | .10 | .08 | .08 | .13 | .13 | .27 | .18 | - | |
| Control variables | |||||||||||||||||||||
| 17. Physician’s EMR experience (y.) | 4.1 | 3.7 | 1.0 | - | .26 | .27 | .25 | .23 | .14 | .03 | .09 | .13 | .21 | .18 | .17 | .15 | .18 | -.02 | .02 | .04 | - |
| 18. Practice’s EMR experience (y.) | 15.2 | 4.1 | 1.0 | - | -.27 | -.27 | -.25 | -.23 | -.18 | -.10 | -.17 | -.16 | -.22 | -.10 | -.21 | -.13 | -.16 | -.04 | -.09 | -.09 | -.83 |
aCronbach’s reliability coefficient [inappropriate for index variables].
bVariance inflation factor [formative indicators only].
cNo. of functionalities used/total no. of functionalities.
dNo. of functionalities available/total no. of functionalities.
Nota. Correlations greater than 0.11 are significant (two-tailed, p < 0.05).