Table 3.
Multivariate model predicting amount of time discussing MCI components of individual new medications
| Bivariate Relationships | Multivariate Relationship | ||||
|---|---|---|---|---|---|
| Independent Variables † | n | Mean time in seconds (SD) | Correlation Coefficient | β-coefficient (95% Confidence Interval) | P-value |
| Medication Class | |||||
| Analgesics | 34 | 17.8 (18.8) * | 0.91 (−8.59, 10.4) | 0.84 | |
| Antibiotics | 34 | 18.1 (22.2) * | −4.92 (−15.0, 5.13) | 0.33 | |
| Cardiovascular | 46 | 41.1 (38.6) * | 10.6 (−0.19, 21.3) | 0.05 | |
| Dermatologic | 20 | 15.1 (19.4) * | 1.66 (−10.1, 13.4) | 0.78 | |
| Ear, nose and throat | 39 | 16.0 (12.1) * | N/A | N/A | |
| Gastrointestinal | 15 | 15.0 (10.6) * | −0.53 (−9.15, 8.09) | 0.90 | |
| Psychiatric | 19 | 42.3 (23.2) * | 24.3 (13.0, 35.7) | <0.001 | |
| Pulmonary | 10 | 28.0 (29.2) * | 10.4 (−9.40, 30.1) | 0.30 | |
| Other | 17 | 23.2 (19.5) * | 2.55 (−21.4, 26.5) | 0.83 | |
| Over-the-counter medication | 39 | 11.2 (11.4) * | −13.5 (−21.1, −5.81) | 0.001 | |
| Non over-the-counter medication | 195 | 27.0 (27.4) * | N/A | N/A | |
| # of new medications prescribed during visit | 234 | −0.03 | 0.44 (−3.17, 4.05) | 0.81 | |
| Patient Age | 229 | 0.003 | −0.08 (−2.63, 2.48) | 0.95 | |
| Female patient | 114 | 23.9 (24.1) | 2.69 (−3.19, 8.57) | 0.36 | |
| Male patient | 120 | 24.9 (28.0) | N/A | N/A | |
| Caucasian patient | 181 | 26.5 (27.1) | 5.97 (−3.86, 15.8) | 0.23 | |
| Non-Caucasian patient | 46 | 17.1 (21.9) | N/A | N/A | |
| Prior visit to same doctor | 176 | 19.9 (17.9) * | −12.7 (−22.1, −3.31) | <0.01 | |
| New to doctor | 57 | 38.7 (39.3) * | N/A | N/A | |
| Physical functioning (time of visit) | 233 | 0.007 | 1.65 (0.63, 2.68) | <0.01 | |
| Specialty | |||||
| Family Medicine | 76 | 19.1 (17.8) * | −12.6 (−24.7, −0.63) | 0.04 | |
| Internal Medicine | 111 | 21.9 (22.1) * | −5.48 (−18.0, 7.08) | 0.38 | |
| Cardiology | 47 | 38.7 (38.7) * | N/A | N/A | |
| Kaiser | 125 | 22.8 (26.4) | −2.06 (−9.62, 5.50) | 0.59 | |
| UC-Davis Medical Group | 109 | 26.2 (25.7) | N/A | N/A | |
| Female physician | 75 | 23.7 (29.3) | 6.41 (−4.09, 16.9) | 0.23 | |
| Male physician | 159 | 24.7 (24.5) | N/A | N/A | |
| Third party in the room | 32 | 44.4 (44.7) * | 18.7 (4.43, 32.9) | 0.01 | |
| No third party in the room | 202 | 23.0 (22.9) * | N/A | N/A | |
Boldface entries indicate p<=0.05
*
p <=0.001
†
n=234; mean model R2 = 0.34 (range 0.332-0.337). Independent variables have reference groups as follows: medication class: ear, nose and throat medications; over-the-counter medication: non-over-the-counter medication; # of new meds prescribed during visit: per medication; patient age: per decade; Caucasian patient: non-Caucasian patient; physical functioning at time of visit: per 10 points on 100-point scale (higher score represents better function); specialty: cardiology; Kaiser site: UC-Davis Medical Group; female physician: male physician; third party in the room: no third party in the room.