Table 4. Dose–Response of Exposure to Training and Technical Assistance (TTA) and Healthy Schools Program (HSP) National Advisors, Participating California Schools (N = 281),a 2006–2011.
| Exposure to TTA or HSP Advisors | Outcome Beta (95% CI) (P Value) |
||
|---|---|---|---|
| Overweightb , % | Obeseb, % | BMI z-score | |
| Total, y | −.48 (−1.03 to .07) (.09) | −.42 (−.90 to .05) (.08) |
−.01 (–.03 to .00) (.14) |
| TTA, y | −.49 (−1.04 to .05) (.08) |
−.44 (−.92 to .03) (.07) |
−.01 (−.03 to .00) (.12) |
| HSP national advisor, y | −1.96 (−3.15 to −.77) (.001) |
−1.73 (−2.71 to −.75) (.001) |
–.04 (−.07 to −.01) (.02) |
| Cumulative total sessions/contacts | –.25 (–.49 to –.00) (.05) |
−.26 (−.47 to −.05) (.01) |
−.01 (−.01 to .00) (.05) |
| Cumulative no. of TTA sessions | –.26 (–.59 to .08) (.13) |
−.23 (−.52 to .06) (.11) |
−.01 (−.02 to .00) (.10) |
| Cumulative no. of HSP national advisor contacts | −.44 (–.92 to .04) (.08) |
−.50 (−.91 to −.11) (.01) |
−.01 (−.02 to .00) (.16) |
Abbreviation: BMI: body mass index (kg/m2).
a
Among the 281 participating schools, the unit of analysis was school/grade/year, with 853 observations.
b
Overweight: BMI ≥85th percentile; obese: BMI ≥95th percentile.