Table 4.

Results Of Logistic Regression Analysis, Adjusted For Age, Weight And Gender, For Selected Variables Relative To Sleep Duration Categories Among Saudi Children

Variable	Sleep Categories (<9 hrs Versus ≥ 9 hrs)a
aOR	(95% CI)	SE	p-Value
Body weight	1.00	0.990–1.02	0.007	0.651
Age (older age = ref)	1.00
Younger age	1.12	1.00–1.24	0.055	0.046
Gender (boy = ref)	1.00
Girl	1.39	1.02–1.88	0.156	0.037
Father education (<high school = ref)	1.00
High school	1.80	1.14–2.83	0.231	0.011
College degree	2.01	1.22–3.32	0.257	0.007
Post-graduate degree	3.00	1.46–6.14	0.366	0.003
Mother education (<high school = ref)	1.00
High school	1.42	0.62–3.21	0.418	0.405
College degree	1.44	0.65–3.18	0.404	0.365
Post-graduate degree	2.05	0.84–4.97	0.453	0.114
Family income (≥20,001= ref)	1.00
10,000–20,000	1.01	0.66–1.54	0.217	0.975
≤ 10,000	0.87	0.55–1.39	0.239	0.571
No. of Family member in the house (≥10 = ref)	1.00
6–9	1.64	0.88–3.05	0.317	0.120
2–5	1.67	0.93–3.01	0.301	0.089
No. of obese children in the family (none = ref)	1.00
1–2	0.79	0.36–1.74	0.402	0.560
3+	0.49	0.23–1.05	0.386	0.066
Overweight/obesity (Overweight/obesity = ref)	1.00
Non-overweight/non-obese	1.08	0.71–1.64	0.214	0.717
Breakfast intake (non-daily = ref)	1.00
Daily	1.44	1.01–2.08	0.186	0.049
Screen time (<2 hrs/day = ref)	1.00
≥2 hrs/day	0.69	0.50–0.97	0.168	0.033
Physical activity (high level = ref)	1.00
Medium	0.92	0.48–1.76	0.333	0.789
Low	0.82	0.51–1.34	0.250	0.438

Note: ^aInsufficient sleep was used as a reference category.

Abbreviations: aOR, adjusted odds ratio; CI, confidence interval; hrs, hours per night; ref, reference category; SE, standard error. Bold values indicate significance.