Table 3. Knee Decision Quality Instrument Outcome Measures.
| Outcome measure | Participants, No. (%) | P value | |
|---|---|---|---|
| Treatment as usual (n = 106) | Predictive tool (n = 105) | ||
| “Did any of your health care providers talk about knee replacement surgery as an option for you?” | |||
| Yes | 80 (75.5) | 75 (71.4) | .52 |
| No | 12 (11.3) | 16 (15.2) | |
| Missing | 14 (13.2) | 14 (13.3) | |
| “How much did you and your health care providers talk about the reasons to have knee replacement surgery?” | |||
| A lot | 26 (24.5) | 27 (25.7) | .93 |
| Some | 33 (31.1) | 34 (32.4) | |
| A little | 26 (24.5) | 22 (21.0) | |
| Not at all | 7 (6.6) | 8 (7.6) | |
| Missing | 14 (13.2) | 14 (13.3) | |
| “How much did you and your health care providers talk about the reasons not to have knee replacement surgery?” | |||
| A lot | 9 (8.5) | 15 (14.3) | .60 |
| Some | 26 (24.5) | 25 (23.8) | |
| A little | 31 (29.2) | 27 (25.7) | |
| Not at all | 26 (24.5) | 24 (22.9) | |
| Missing | 14 (13.2) | 14 (13.3) | |
| “Did any of your health care providers talk about nonsurgical treatments as something that you should seriously consider?” | |||
| Yes | 52 (49.1) | 46 (43.8) | .51 |
| No | 40 (37.7) | 45 (42.9) | |
| Missing | 14 (13.2) | 14 (13.3) | |
| “Which treatment do you think is most likely to provide relief from knee pain caused by osteoarthritis?” | |||
| Surgery | 48 (45.3) | 58 (55.2) | .10 |
| Nonsurgical treatment | 11 (10.4) | 13 (12.4) | |
| About the same | 34 (32.1) | 20 (19.0) | |
| Missing | 13 (12.3) | 14 (13.3) | |
| “Which treatment do you want to do to treat your knee osteoarthritis?” | |||
| Knee replacement | 40 (37.7) | 32 (30.5) | <.001 |
| Nonsurgical treatment | 26 (24.5) | 48 (45.7) | |
| Not sure | 27 (25.5) | 11 (10.5) | |
| Missing | 13 (12.3) | 14 (13.3) | |