OAI Schedule of Visits and Assessments
OAI Examination Measures
Last modified on Sep 10, 2018
Questionnaire Measures
Last modified on Oct 18, 2017
Baseline Subject Characteristics
| Progression | Incidence | Control | |
| Women | 57% | 59% | 61% |
| Age 60-79 | 55% | 54% | 25% |
| Non-white | 30% | 18% | 7% |
| BMI > 30 | 50% | 33% | |
| History of knee injury/surgery | 51% | 39% | 0% |
| Frequent knee symptoms | 100% | 30% | 0% |
| X-Ray OA in <1 knee, baseline clinic read | 100% | 39% | 0% |
| Number of subjects | 1,389 | 3,285 | 122 |
Data Completeness
Follow Up Visit Summary
| Visit | 12m | 24m | 36m | 48m | 60m | 72m | 84m | 96m | 108m |
| Clinic Visit | 4,293 (90%) | 4,082 (85%) | 3,925 (82%) | 3,831 (80%) | 3,239 (68%) | 3,117 (65%) | |||
| Telephone Interview | 200 (4%) | 260 (5%) | 349 (7%) | 425 (9%) | 3,935 (82%) | 584 (12%) | 3,787 (79%) | 531 (11%) | 3,204 (67%) |
| Did not consent to extension | 724 (15%) | 724 (15%) | 724 (15%) | 724 (15%) | 724 (15%) | ||||
| Contacted no data | 201 (4%) | 126 (3%) | 39 (1%) | 81 (2%) | 48 (1%) | 83 (2%) | 88 (2%) | ||
| Withdrew | 44 (1%) | 97 (2%) | 148 (3%) | 207 (4%) | NA | 50 (1%) | 87 (2%) | 137 (3%) | 332 (9%) |
| Unable to contact | 145 (3%) | 137 (3%) | 13 (<1%) | 6 (<1%) | 12 (<1%) | 13 (<1%) | 31 (<1%) | ||
| Deceased | 12 (0.2%) | 29 (0.6%) | 52 (1%) | 70 (1%) | 85 (2%) | 112 (2%) | 138 (3%) | 172 (4%) | 208 (4%) |
| Study Details | Outcomes |