Changes in school-day step counts during a physical activity for Lent intervention: a cluster randomized crossover trial of the Savior’s Sandals

Table 4 Least-squared means of typical steps/day between control and treatment phases across grades

Note. Least-squared means are predicted population marginal means adjusted for unbalanced cell sizes with standard errors adjusted for model covariance parameters. Superscript ^a indicates a significant mean difference between grade 6 and grades 7 and 8 participants (P < 0.05). Superscript ^b indicates a significant difference in the mean number of steps compared to the control condition (P < 0.01)