TABLE 1. Question wording and analytic coding for included youth behavior and experience variables — Youth Risk Behavior Survey, United States, 2023.

Variable	Question	Response option	Analytic coding
Breakfast consumption	During the past 7 days, on how many days did you eat breakfast?	0 days, 1 day, 2 days, 3 days, 4 days, 5 days, 6 days, or 7 days	0 days, 1 day, 2 days, 3 days, 4 days, 5 days, 6 days, 7 days
Skipping breakfast every day	During the past 7 days, on how many days did you eat breakfast?	0 days, 1 day, 2 days, 3 days, 4 days, 5 days, 6 days, or 7 days	0 days, ≥1days
Experienced persistent feelings of sadness or hopelessness	During the past 12 months, did you ever feel so sad or hopeless almost every day for two weeks or more in a row that you stopped doing some usual activities?	Yes or no	Yes or no
School connectedness	Do you agree or disagree that you feel close to people at school?	Strongly agree, agree, not sure, disagree, or strongly disagree	Strongly agree/agree versus not sure/disagree/ strongly disagree
Mostly As or Bs	During the past 12 months, how would you describe your grades in school?	Mostly A’s, Mostly B's, Mostly C's, Mostly D's, Mostly F's, none of these grades, or not sure	Mostly A's/B's, Mostly C's/D's/F's None of these grades/not sure = missing