Table 3.
Associations of MHO phenotypes* with physical activity and screen time, among adolescents and adults∧.
| Adolescents (12–18 yrs) | Adults (19–44 yrs) | Adults (45–85 yrs) | |
|---|---|---|---|
| OR (95% CI) | OR (95% CI) | OR (95% CI) | |
| Physical activity | |||
| Moderate PA+ (min/day) | 0.99 (0.74–1.32) | 1.08 (0.90–1.30) | 1.36 (1.04–1.78) |
| Vigorous PA+ (min/day) | 1.0 (0.77–1.30) | 1.21 (0.96–1.52) | 0.97 (0.75–1.26) |
| MVPA+ (min/day) | 0.96 (0.64–1.44) | 1.21 (0.91–1.60) | 1.29 (0.95–1.77) |
| PA+ (MET ∗ min/day) | 0.95 (0.66–1.37) | 1.22 (0.94–1.59) | 1.25 (0.93–1.69) |
| Meeting PA recommendations" | 0.85 (0.30–2.39) | 1.37 (0.72–2.64) | 1.10 (0.54–2.25) |
| Muscle strength (#/wk) | 1.19 (0.55–2.56) | 0.82 (0.51–1.32) | 1.36 (0.64–2.92) |
| Active transport (%) | 1.21 (0.57–2.54) | 1.85 (1.11–3.10) | 0.74 (0.38–1.45) |
| Active transport+ (mins/wk) | 1.04 (0.91–1.19) | 1.17 (1.02–1.35) | 0.92 (0.78–1.09) |
| Usual daily activity | |||
| Sit | N/A | 1 (Reference) | 1 (Reference) |
| Walk | 1.05 (0.43–2.55) | 0.92 (0.41–2.06) | |
| Light activity | 2.70 (1.17–6.19) | 0.82 (0.22–2.96) | |
| Heavy activity | 0.53 (0.18–1.51) | 0.89 (0.15–5.41) | |
|
| |||
| Sedentary behavior | |||
| TV/video (# hours/day) | |||
| ≤1 hr/day | 1.45 (0.43–4.97) | 1.42 (0.52–3.88) | 1.48 (0.39–5.58) |
| 2-3 hr/day | 2.75 (0.99–7.63) | 1.82 (0.85–3.88) | 2.04 (0.65–6.43) |
| 4+ hr/day | 1 (Reference) | 1 (Reference) | 1 (Reference) |
| Computer (# hours/day) | |||
| ≤1 hr/day | 1.86 (0.40–8.65) | 1.91 (0.70–5.20) | 2.40 (0.70–8.19) |
| 2-3 hr/day | 1.00 (0.14–6.93) | 0.79 (0.26–2.39) | 4.21 (0.74–23.74) |
| 4+ hr/day | 1 (Reference) | 1 (Reference) | 1 (Reference) |
| Meeting screen time recommendations** | 1.12 (0.42–2.93) | 1.43 (0.64–3.20) | 1.09 (0.47–2.52) |
*Reference: MUO; outcome: MHO.
∧Adjusted for age, gender, BMI (z-score in adolescents; kg/m2 in adults), race/ethnicity (non-Hispanic white, non-Hispanic black, Mexican American, and others: mixed and Hispanic), menopausal status, and NHANES wave (2003-2004, 2005-2006).
**≤2 hrs screen time per day as recommended for children and adolescents by American Academy of Pediatrics.
+Variable log transformed for analysis.
"≥60 mins /day MVPA for adolescents; ≥30 mins/day adults.
N/A: not available.