Table 4.
Model implied estimates for intent-to-treat and as-treated analyses.
| Post-Summer Change From Baseline (3-month follow-up) | Post-School Change From Baselinea (12-month follow-up) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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|
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| Pre summer | Post-summer | Post-School | Δ | 95CI | Difference in Δ | 95CI | Δ | 95CI | Difference in Δ | 95CI | ||
|
| ||||||||||||
| Intent-to-treat | ||||||||||||
| BMI z-score | Control | 0.83 | 0.89 | 0.91 | 0.06 | (0.01, 0.12) | 0.09 | (0.01, 0.17) | ||||
| HSL | 0.83 | 0.86 | 0.86 | 0.03 | (−0.03, 0.09) | −0.03b | (−0.11, 0.06) | 0.04 | (−0.02, 0.14) | −0.05b | (−0.14, 0.08) | |
| 21 C | 0.83 | 0.85 | 0.87 | 0.02 | (−0.03, 0.08) | −0.04c | (−0.12, 0.04) | 0.04 | (−0.03, 0.12) | −0.04c | (−0.15, 0.07) | |
| MAP Reading Score | Control | 192.7 | 193.6 | 204.8 | 0.9 | (−1.4, 3.2) | 12.2 | (9.1, 15.2) | ||||
| HSL | 192.4 | 194.2 | 204.7 | 1.8 | (−0.5, 4.2) | 0.9b | (−2.4, 4.2) | 12.4 | (9.5, 15.3) | 0.2b | (−4.0, 4.4) | |
| 21 C | 192.3 | 193.0 | 207.2 | 0.7 | (−1.5, 2.8) | −0.2c | (−3.4, 2.9) | 14.9 | (12.1, 17.7) | 2.7c | (−1.4, 6.9) | |
| PACER Laps | Control | 12.2 | 12.1 | 15.6 | −0.1 | (−1.7, 1.5) | 3.4 | (−1.7, 1.5) | ||||
| HSL | 12.5 | 12.3 | 16.3 | −0.1 | (−1.8, 1.5) | 0.0b | (−2.4, 2.3) | 3.9 | (1.2, 6.5) | 0.5b | (−3.1, 4.0) | |
| 21 C | 12.4 | 13.7 | 15.7 | 1.3 | (0.3, 2.9) | 1.4c | (−0.9, 3.6) | 3.2 | (0.2, 6.2) | −0.2c | (−4.0, 3.6) | |
| As-treated | ||||||||||||
| BMI z-score | Non-attender | 0.83 | 0.91 | 0.91 | 0.08 | (0.02, 0.14) | 0.08 | (0.01, 0.16) | ||||
| Attender | 0.83 | 0.85 | 0.88 | 0.02 | (−0.02, 0.06) | −0.07 | (−0.14, 0.01) | 0.05 | (−0.01, 0.11) | −0.03 | (−0.12, 0.06) | |
| MAP Reading Score | Non-attender | 192.3 | 192.7 | 205.3 | 0.4 | (−2.1, 1.9) | 13.0 | (10.6, 16.4) | ||||
| Attender | 192.4 | 194.9 | 205.9 | 2.5 | (0.2, 4.8) | 2.1 | (−4.9, 0.7) | 13.5 | (11.0, 15.1) | 0.5 | (−6.1, 8.0) | |
| PACER Laps | Non-attender | 12.7 | 13.0 | 16.9 | 0.3 | (−1.4, 1.9) | 4.2 | (1.3, 6.5) | ||||
| Attender | 12.9 | 13.3 | 17.2 | 0.5 | (−0.7, 1.7) | 0.2 | (−1.8, 2.2) | 4.3 | (2.3, 6.4) | 0.2 | (−3.0, 3.3) | |
Bolded numbers are statistically significant at p < 0.05.
Abbreviations: “95CI” 95% Confidence Interval, “HSL” Healthy Summer Learners, “21 C” 21st Century Summer Learning Program, “BMI” Body mass index, “MAP” Measures of Academic Progress, “PACER” Progressive Aerobic Cardiovascular Endurance Run.
a
Not collected on the second cohort due to Covid-19 school closures.
b
HSL vs. Control.
c
21 C vs. Control.