Table 2.
Physical activity and sedentary time by age group in Malawi and USA¶
| Malawi | US | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean (CI95) or % | Mean (CI95) or % | Country | Age group | Country‡ Age group | |||||||||
| All | 15–19 | 20–39 | 40–64 | 65–85 | All | 15–19 | 20–39 | 40–64 | 65–85 | F (partial η squared) | F (partial η squared) | F (ηp 2) | |
| Sedentary (min/day) | 387.6 (377.4–397.8) | 410.6 (388.0–433.3) | 385.6 (371.6–399.6) | 380.1 (365.2–395.0) | 374.1 (342.3–405.8) | 525.8 (522.2–529.4) | 605.4 (589.0–621.8) | 505.6 (496.6–514.6) | 481.4 (476.9–485.9) | 510.9 (497.6–524.1) | 674.10* (0.156) | 32.8* (0.026) | 18.99* (0.015) |
| Low-light (min/day) | 222.1 (214.7–229.5) | 203.8 (187.4–220.2) | 210.3 (200.2–220.4) | 224.0 (213.2–234.8) | 250.4 (227.4–273.4) | 217.0 (214.7–229.5) | 152.2 (104.3–164.1) | 232.1 (225.6–238.7) | 248.0 (244.8–251.3) | 235.5 (225.9–245.1) | 1.78 (0.000) | 27.61* (0.022) | 28.89* (0.023) |
| High-light (min/day) | 136.3 (132.7–139.9) | 115.8 (107.9–123.7) | 138.9 (134.0–143.8) | 147.5 (142.3–152.7) | 143.0 (131.9–154.0) | 45.6 (44.3–46.8) | 27.2 (21.5–32.9) | 50.9 (47.7–54.0) | 57.9 (56.3–59.5) | 46.3 (41.7–50.9) | 2394.2* (0.396) | 42.67* (0.034) | 0.743 (0.001) |
| Moderate (min/day) | 71.6 (68.8–74.5) | 86.7 (80.4–93.0) | 83.1 (79.2–87.0) | 67.0 (62.9–72.1) | 49.8 (40.9–58.7) | 28.0 (27.0–29.0) | 30.9 (26.3–35.5) | 27.5 (25.0–30.0) | 29.0 (27.7–30.3) | 24.5 (20.8–28.2) | 867.5* (0.192) | 8.98* (0.007) | 24.67* (0.020) |
| Vigorous (min/day) | 1.1 (0.5–1.8) | 1.8 (0.3–3.4) | 0.9 (0.0–1.9) | 0.2 (−0.8–1.2) | 1.6 (−0.6–3.8) | 2.5 (2.2–2.7) | 3.08 (2.0–4.2) | 2.7 (2.1–3.3) | 2.5 (2.2–2.8) | 1.6 (0.7–2.5) | 13.7* (0.004) | 1.18 (0.001) | 1.41 (0.001) |
| MVPA (min/day) | 72.8 (69.7–75.9) | 88.6 (81.7–95.4) | 84.0 (79.8–88.2) | 67.2 (62.7–71.8) | 51.4 (41.8–61.0) | 30.5 (29.4–31.5) | 34.0 (29.0–39.0) | 30.2 (27.5–33.0) | 31.5 (30.1–32.8) | 26.2 (22.2–30.2) | 691.88* (0.159) | 8.12* (0.007) | 20.63* (0.017) |
| Accelerometer total counts per day | 506 265.8 (49.0862.–521 669.5) | 525 608.6 (491 476.6–559 740.7) | 533 582.3 (512 483.8–554 680.9) | 496 352.0 (473 867.7–518 836.3) | 469 520.1 (421 604.9–517 435-3) | 254 210.9 (248 843.5–259 578.4) | 221 677.0 (196 951.4–246 402.6) | 266 743.1 (253 122.5–280 363.8) | 286 548.0 (279 715.2–293 380.9) | 241 875.6 (221 922.2–261 829.0) | 986.47* (0.213) | 5.57† (0.005) | 9.23* (0.008) |
| % meeting MVPA guideline of 150 min/week | 93.7% | 100.0% | 99.0% | 90.3% | 53.6% | 55.1% | 90.1% | 69.0% | 56.9% | 24.3% | Npar test statistic =227.57* | Npar test statistic =695.73* | |
*p≤0.001.
†p≤0.01.
‡p≤0.05.
§p≤0.10.
¶Sex, age and accelerometer-wearing time adjusted for as covariates, except for % meeting MVPA guideline of 150 min/week.