Table 1.
Linear Mixed Modeling of change in average steps/day by week and message type (n=72 person-weeks, 24 participants). Referent group for the TPM group were those that received standard messaging (without any location-specific information).
Adjusted (Age, BMI*) | Adjusted (TPM†) | Fully Adjusted (TPM†, Age, BMI*) | ||||
---|---|---|---|---|---|---|
Effect | Estimate (SE‡) | p | Estimate (SE‡) | p | Estimate (SE‡) | p |
Intercept | 6096 (7084) | 0.40 | 7840 (869) | <.0001 | 8034 (7108) | 0.27 |
Week 2 | 685 (429) | 0.12 | −361 (720) | 0.62 | −373 (727) | 0.61 |
Week 3 | 1180 (429) | 0.01 | 295 (720) | 0.68 | 284 (727) | 0.70 |
Place-tailored Messaging (TPM†) | −221 (1505) | 0.88 | −154 (1515) | 0.92 | ||
Week 2 *TPM† | 1571 (882) | 0.08 | 1588 (894) | 0.08 | ||
Week 3*TPM† | 1327 (882) | 0.14 | 1344 (894) | 0.14 | ||
Age | 17 (67) | 0.81 | 9 (66) | 0.89 | ||
BMI* | 25 (120) | 0.84 | −16 (119) | 0.89 |
BMI: Body Mass Index;
TPM: Place-tailored messaging;
SE: Standard error.