Association of Sleep Duration with Obesity among US High School Students

Table 2

Associations of insufficient and long sleep duration, and obesity with other health-related behaviors—US high school students.

Health-related Behavior	Insufficient sleep duration (≤7 hours)^a			Long sleep duration (≥9 hours)^a			Obese (BMI ≥ 95th percentile)^b
	AOR	95% CI	𝑃 value	AOR	95% CI	𝑃-value	AOR	95% CI	𝑃 value
Felt sad and hopeless^c	1.79	1.61–1.99	0.0000	1.26	1.08–1.46	0.0032	1.26	1.11−1.43	0.0006
Current smoker^d	1.63	1.45–1.84	0.0000	1.10	0.90–1.34	0.3604	1.31	1.15–1.50	0.0001
Drank nondiet soda^e	1.26	1.17–1.36	0.0000	1.14	0.96–1.34	0.1292	1.15	1.02–1.29	0.0237
Computer/video games^f	1.61	1.46–1.77	0.0000	1.10	0.91–1.33	0.2992	1.29	1.15–1.44	0.0000
Television viewing^g	1.02	0.93–1.11	0.6490	1.08	0.93–1.27	0.2999	1.48	1.33–1.64	0.0000
Physically active^h	0.82	0.75–0.90	0.0000	1.28	0.99–1.65	0.0571	0.63	0.55–0.72	0.0000
Ate fruits and vegetables^i	0.83	0.75–0.92	0.0008	1.50	1.27–1.76	0.0000	1.02	0.90–1.15	0.7393
Drank milk^j	0.86	0.77–0.97	0.0145	1.41	1.16–1.71	0.0008	1.10	0.95–1.28	0.1926

AOR = odds ratio adjusted for sex, race/ethnicity, and grade. Referent for insufficient (≤7 hours) and long (≥9 hours) sleep duration is 8 hours of sleep.
CI = confidence interval.
^aOn an average school night.
^bBased on self-reported height and weight, body mass index (BMI = weight [kg]/height [m]²) ≥95th percentile using growth charts developed by the Centers for Disease Control and Prevention for youth aged 2–20 years.
^cAlmost every day for 2 or more weeks so that they stopped doing some usual activities.
^dSmoked cigarettes on at least 1 day during the 30 days before the survey.
^eDrank a can, bottle, or glass of soda or pop, not including diet soda or diet pop, at least one time per day during the 7 days before the survey.
^fUsed a computer for something that was not school work or played video games for 3 or more hours per day on an average school day.
^gWatched television for 3 or more hours per day on an average school day.
^hWere physically active doing any kind of physical activity that increased their heart rate and made them breathe hard some of the time for at least 60 minutes per day on all 7 days during the 7 days before the survey.
ⁱAte fruits and vegetables 5 or more times per day during the 7 days before the survey.
^jDrank 3 or more glasses of milk per day during the 7 days before the survey.