Table 1 Mean (SD) of activity-related behaviors and potential intrapersonal, interpersonal and physical environmental correlates for each typology
From: Ecological correlates of activity-related behavior typologies among adolescents
|  | Overall (n = 473) | Typology 1 Physically inactive, highly sedentary (n = 209) | Typology 2 Moderately active, high screen-time (n = 198) | Typology 3 Highly active, low sedentary (n = 66) |
|---|---|---|---|---|
Activity-related behaviors | ||||
 MVPA mins/day | 40.52 (24.66) | 33.45 (27.91) | 41.28 (20.39) | 56.65 (16.43) |
 SED mins/day | 545.97 (90.65) | 573.59 (92.73) | 545.04 (88.27) | 477.89 (43.29) |
Potential correlate (range of scores) | ||||
 Self-efficacy for physical activity (−12–12) | 1.8 (5.9) | 0.7 (6.0) | 2.1 (5.7) | 4.7 (5.2) |
 Enjoyment of sedentary behaviors (−2–2) | 0.9 (1.1) | 0.8 (1.2) | 1.0 (1.1) | 0.8 (1.0) |
 Sport competence (−12–12) | 4.5 (6.5) | 3.5 (6.6) | 4.6 (6.5) | 7.2 (5.3) |
 Cons of physical activity (−10–10) | −6.3 (3.5) | −5.8 (3.8) | −6.5 (3.2) | −7.2 (2.7) |
 Pros of physical activity (−10–10) | 7.8 (2.5) | 7.7 (2.6) | 7.8 (2.6) | 8.3 (2.0) |
 Parental screen-time restriction rules (0–6)1 | 1.7 (1.5) | 1.5 (1.6) | 1.6 (1.4) | 2.4 (1.6) |
 Sibling screen-time co-participation (0–7 days/week) | 3.2 (2.0) | 2.9 (1.9) | 3.3 (2.2) | 3.7 (2.0) |
 Parent/guardian screen-time co-participation (0–7 days/week) | 3.0 (2.0) | 2.8 (1.9) | 3.1 (2.2) | 3.3 (1.8) |
 Friend screen-time co-participation (0–7 days/week) | 3.1 (1.7) | 2.9 (1.7) | 3.3 (1.6) | 3.1 (1.6) |
 Parental support for physical activity (5–25) | 16.5 (4.6) | 15.4 (5.0) | 16.7 (4.2) | 19.1 (3.4) |
 Friend/sibling support for physical activity (3–15) | 8.0 (2.9) | 7.5 (3.0) | 8.2 (2.9) | 8.9 (2.5) |
 Access to screen based items in bedroom (0–7 items) | 2.9 (1.6) | 2.8 (1.7) | 2.9 (1.7) | 2.9 (1.4) |
 Availability of options for physical activity in home environment (0–10 items) | 6.1 (2.3) | 5.8 (2.3) | 6.1 (2.2) | 7.1 (2.2) |
 Perceived neighborhood road safety (−16–16) | 4.9 (4.3) | 4.5 (4.4) | 4.9 (4.3) | 6.3 (4.1) |
 Perceived neighborhood crime safety (−14–14)2 | −8.6 (5.7) | −8.4 (5.8) | −8.6 (5.7) | −9.6 (5.1) |
 Count of private/public recreation land (0–16) | 1.5 (1.9) | 1.4 (1.7) | 1.5 (1.7) | 1.9 (2.7) |
 Count of public trails < 1 km from home (0–4) | 0.4 (0.6) | 0.3 (0.6) | 0.4 (0.6) | 0.4 (0.7) |
 Count of public parks < 1 km from home (0–50) | 13.3 (9.0) | 13.4 (9.5) | 13.4 (8.7) | 12.9 (8.6) |
 Density of public transportation < 1 km from home (0–58.7) | 25.7 (12.9) | 25.5 (13.4) | 26.1 (12.4) | 25.3 (13.0) |