Table 1.
Unweighted total sample | None | PA | Screen time | Sleep | PA + screen time + sleep | |
---|---|---|---|---|---|---|
Overall | 15,786 (100%) | 25 (24–26) | 37 (36–38) | 35 (34–36) | 50 (49–51) | 9.7 (9.2–10) |
Demographic characteristics | ||||||
Gender (n = 15,580)a | ||||||
Male | 7807 | 22 (21–23) | 41 (40–42) | 35 (34–36) | 51 (50–52) | 11 (9.9–11) |
Female | 7773 | 28 (26–29) | 32 (31–33) | 35 (34–36) | 49 (48–50) | 9.0 (8.3–9.7) |
Age (n = 15,786)a | ||||||
9–12 years | 6451 | 16 (15–17) | 40 (38–41) | 55 (54–56) | 57 (56–58) | 16 (15–17) |
13–18 years | 9335 | 32 (30–33) | 35 (34–36) | 21 (20–22) | 45 (44–46) | 5.3 (4.8–5.8) |
School type (n = 15,786)a | ||||||
Gymnasium | 9566 | 22 (21–23) | 42 (41–43) | 41 (40–42) | 51 (50–52) | 13 (13–14) |
Other | 6220 | 27 (26–28) | 33 (32–34) | 30 (29–31) | 49 (47–50) | 7.1 (6.4–7.7) |
Self-report SES (n = 15,695)a | ||||||
Below median (< 7) | 6256 | 28 (27–29) | 33 (32–34) | 31 (30–33) | 48 (47–50) | 7.6 (7.0–8.3) |
Above median (≥ 7) | 9439 | 23 (22–24) | 40 (39–41) | 37 (36–38) | 51 (50–52) | 11 (11–12) |
Personal characteristics | ||||||
BMI percentile (n = 15,353)a | ||||||
Underweight | 910 | 20 (17–23) | 37 (33–40) | 45 (42–49) | 55 (51–58) | 13 (11–16) |
Normal | 12,454 | 24 (23–25) | 37 (37–38) | 36 (35–37) | 51 (50–52) | 10 (9.8–11) |
Overweight | 1562 | 32 (30–35) | 34 (31–36) | 24 (22–27) | 41 (39–44) | 5.8 (4.7–7.1) |
Obese | 427 | 32 (28–37) | 29 (25–34) | 22 (18–26) | 48 (42–53) | 4.3 (2.6–7) |
School performance (n = 15,764)a | ||||||
Below median (< 3) | 3429 | 31 (30–33) | 31 (30–33) | 25 (24–27) | 43 (41–45) | 4.6 (3.9–5.4) |
Above median (≥ 3) | 12,335 | 23 (22–24) | 38 (37–39) | 38 (37–38) | 52 (51–53) | 11 (11–12) |
Risk-taking (n = 15,684)a | ||||||
Low (< 2) | 5721 | 21 (20–22) | 32 (31–34) | 43 (41–44) | 59 (58–61) | 12 (12–13) |
High (≥ 2) | 9963 | 27 (26–28) | 39 (38–40) | 30 (29–31) | 45 (44–46) | 8.2 (7.6–8.7) |
Depression scale (n = 15,728)a | ||||||
Normal/borderline (0–6) | 14,113 | 23 (23–24) | 37 (37–38) | 36 (35–37) | 52 (51–52) | 10 (9.8–11) |
Abnormal (7–10) | 1615 | 40 (37–42) | 30 (28–33) | 20 (18–23) | 34 (32–37) | 3.8 (2.9–4.9) |
ADHD scale (n = 15,701)a | ||||||
Normal/borderline (0–6) | 14,426 | 24 (23–25) | 37 (36–38) | 36 (35–36) | 51 (50–52) | 10 (9.6–11) |
Abnormal (7–10) | 1275 | 34 (31–37) | 34 (31–37) | 26 (23–28) | 37 (34–40) | 5.2 (4.0–6.5) |
Past 30-day substance user | ||||||
Cigarettes (n = 15,758)a | 823 | 45 (42–49) | 30 (27–33) | 14 (12–17) | 27 (24–30) | 1.0 (0.5–1.9) |
E-cigarettes (n = 15,743)a | 444 | 39 (34–44) | 41 (36–46) | 14 (10–17) | 28 (24–33) | 2.2 (1.2–4.1) |
Hookah (n = 15,746)a | 519 | 38 (34–43) | 38 (34–43) | 13 (11–17) | 28 (24–32) | 10.0 (9.6–10.5) |
Alcohol (n = 15,758)a | 2163 | 41 (39–43) | 37 (35–39) | 13 (11–14) | 29 (27–31) | 1.9 (1.4–2.6) |
Energy drinks (n = 15,763)a | 2666 | 39 (37–41) | 34 (32–36) | 14 (12–15) | 33 (31–35) | 2.3 (1.8–3.0) |
AOR adjusted odds ratio; CI confidence interval; PA physical activity; SES socioeconomic status; BMI body mass index; ADHD attention deficit hyperactivity disorder
aNumber of subjects with complete (non-missing) information on this variable