Table 3.
Trend Analysis of Significant Intervention Effects; ANCOVA Analyses Controlling for Baseline Measures
| Outcome Measure | Measurement Time* | Experimental Group “Compressed” | Control Group “Extended” | |||||
|---|---|---|---|---|---|---|---|---|
| INTERVENTION ATTENDANCE | INTERVENTION ATTENDANCE | |||||||
| Low Attendance | High Attendance | Low Attendance | High Attendance | Significance (p) | ||||
| Madj** | Madj** | Madj** | Madj** | Intervention | Attendance | Intervention by attendance interaction | ||
| HbA1c | 3-Month | 11.6±3.1(33) | 10.5±2.6(61) | 11.8±3.8(43) | 10.5±2.6(51) | .71 | <.001 | .74 |
| 12-Month | 10.8±3.5(21) | 11.3±3.1(62) | 11.3±3.0(37) | 10.0±2.5(46) | .30 | .40 | .05 | |
| Fasting
Blood Glucose |
3-Month | 175.2±57.9(33) | 159.6±51.5(61) | 195.8±65.4(43) | 163.6±46.2(51) | .09 | <.001 | .20 |
| 12-Month | 181.1±75.7(21) | 178.5±54.4(63) | 183.8±76.0(37) | 165.0±40.7(46) | .15 | .23 | .45 | |
| Diabetes Knowledge | 3-Month | 15.2±2.8(32) | 16.3±3.5(61) | 15.8±3.0(43) | 16.6±2.9(51) | .51 | .02 | .67 |
| 12-Month | 12.6±6.4(26) | 15.0±5.1(67) | 13.3±6.2(44) | 15.7±5.5(50) | .73 | .007 | .96 | |
*
3-month measurement is evaluation of educational component of the intervention, controlling for baseline differences in outcome variable; 12-month measure is evaluation of support group component, controlling for 3-month differences in outcome variable
**
Madj = adjusted mean (based on baseline mean)