Table 4.
Predicting change in non-adherence scores in the Whole Foods group; Comparing Healthy Options in Cooking and Eating (CHOICE) Study. Longitudinal regression model in which non-adherence is a time-varying dependent variable
| Predictor | Estimate | df | t | Significance |
|---|---|---|---|---|
| Intercept | −26·038 | 11·386 | −1·065 | 0·309 |
| (Time = 1) | 1·575 | 46·605 | 0·387 | 0·701 |
| (Time = 2) | 0·867 | 38·988 | 0·779 | 0·441 |
| (Time = 3) | 0§§ | |||
| Age* | −0·084 | 11·366 | −0·363 | 0·724 |
| Race† | 4·418 | 11·591 | 1·871 | 0·087 |
| Ethnicity‡ | −1·162 | 11·376 | −0·439 | 0·669 |
| Marital status§ | −1·179 | 11·305 | −0·606 | 0·557 |
| Weight∥ | 0·063 | 11·347 | 1·680 | 0·120 |
| Education¶ | −0·884 | 11·749 | −0·925 | 0·374 |
| Class attendance** | −2·977 | 47·118 | −0·635 | 0·529 |
| Positive attitude†† | 8·995 | 11·465 | 1·646 | 0·127 |
| Negative attitude‡‡ | 1·843 | 11·313 | 1·013 | 0·332 |
*Age of participant.
†Race of participant (white v. other).
‡Ethnicity of participant (non-Hispanic v. other).
§Marital status of participant (married v. other).
∥Weight of participant over course of intervention.
¶Education of participant (high-school graduate; some college, vocational or business school; college graduate; advanced degree).
**Attendance at class sessions.
††‘Positive’ attitudes towards cooking and eating measured at baseline.
‡‡‘Negative’ attitudes towards cooking and eating measured at baseline.
§§This parameter is set to zero because it is redundant.