Table 4.
Modified Intention-to-Treat Analysis (n = 897): Comparison of Oral Health Knowledge and Behavior of Caregivers over Time in the Intervention (n = 463) and Usual Care (n = 434) Groups.
| Sample Size, n |
Oral Health Knowledge, Mean (SD) |
Oral Health Behavior, Mean (SD) |
||||
|---|---|---|---|---|---|---|
| Time | INT | UC | INT | UC | INT | UC |
| Baseline | 463 | 434 | 75.1 (13.7) | 73.6 (13.1) | 54.4 (19.3) | 56.1 (18.3) |
| Follow-up | ||||||
| Year 1 | 221 | 230 | 80.4 (13.1) | 76.8 (13.5) | 62.7 (18.8) | 58.2 (19.6) |
| Year 2 | 233 | 225 | 81.4 (14.8) | 78.0 (13.2) | 63.4 (18.7) | 61.1 (18.3) |
| Year 3 | 110 | 115 | 81.2 (13.4) | 79.5 (12.8) | 65.6 (18.9) | 66.4 (17.6) |
| P valuea | ||||||
| Model 1 | 0.369 | 0.006 | ||||
| Model 2 | 0.099 | 0.003 | ||||
INT, intervention; UC, usual care.
a
Model 1 compares the INT and UC groups for baseline through year 3, with the original caregiver completing the oral health knowledge and behavior questions (yes, no) as a covariate. Model 2 compares the INT and UC groups for baseline through year 3 using the data only when the original caregiver completed the oral health knowledge and behavior questions.