Table 4.

Regression Analysis Comparing Student Health and Behavior Responses in 4‐ Versus 5‐Day Schedules

	Without School Fixed Effects		With School Fixed Effects
	Coefficient ± SE	p‐Value	Coefficient ± SE	p‐Value
Nutritional behaviors (past 7 days)
Frequency of fruits/day	−0.045 ± 0.025	.075	−0.057 ± 0.066	.386
Frequency of vegetables/day	0.006 ± 0.036	.875	−0.042 ± 0.091	.643
Frequency of sugar sweetened beverages/day	0.235 ± 0.113	.039	0.092 ± 0.045	.041
Frequency of soda/day	0.063 ± 0.029	.028	−0.014 ± 0.062	.826
Frequency of milk/day	0.086 ± 0.026	.001	−0.025 ± 0.041	.542
Frequency of water/day	−0.039 ± 0.032	.227	−0.139 ± 0.052	.008
Days eating breakfast	−0.019 ± 0.019	.333	0.002 ± 0.057	.970
Food insecure (% yes, past 12 months)	−0.011 ± 0.012	.366	0.085 ± 0.006	<.001
Physical activity behaviors
Physical education days (avg school week)	−0.391 ± 0.145	.008	−0.882 ± 0.202	<.001
Days physically active ≥60 minutes (past 7 days)	0.115 ± 0.065	.075	−0.228 ± 0.255	.372
Screen time hours/day (avg school day)	−0.187 ± 0.061	.002	−0.185 ± 0.203	.364
Overweight/obese (%), self‐report	0.030 ± 0.010	.002	0.012 ± 0.026	.663
Substance use (past 30 days)
Any drug use	−0.013 ± 0.013	.316	0.107 ± 0.036	.003
Any marijuana use	−0.019 ± 0.010	.048	0.065 ± 0.025	.010
Any alcohol use	−0.002 ± 0.013	.873	0.028 ± 0.039	.475
Any cigarette use	0.018 ± 0.010	.059	−0.004 ± 0.023	.873
Took prescription drug without a prescription	0.000 ± 0.005	.959	0.017 ± 0.011	.123
Drove after drinking alcohol	−0.010 ± 0.005	.071	−0.010 ± 0.017	.575
Sexual health
Had sexual intercourse (past 3 months)	0.020 ± 0.013	.130	−0.052 ± 0.046	.265
Ever been victim of forced sex	0.006 ± 0.006	.253	0.017 ± 0.014	.239
Violence
Been in a physical fight (past 12 months)	0.004 ± 0.007	.557	−0.001 ± 0.022	.965