Table 1
General characteristics of study participants (Florianópolis, Brazil).
| VARIABLE | TOTAL | 2007 | 2017/2018 | p-VALUE |
|---|---|---|---|---|
| Total | 1967 | 975 (49.6) | 992 (50.4) | 0.718* |
| Sex, n (%) | <0.001* | |||
| Female | 1080 (54.9) | 599 (61.4) | 481 (48.5) | |
| Male | 887 (45.1) | 376 (38.6) | 511 (51.5) | |
| Age (years), median (IQR) | 16.00 (2.00) | 16.00 (2.00) | 17.00 (1.00) | <0.001† |
| Age, n (%) | <0.001* | |||
| 15 | 523 (26.6) | 324 (33.2) | 199 (20.1) | |
| 16 | 607 (30.9) | 317 (32.5) | 290 (29.2) | |
| 17 | 626 (31.8) | 258 (26.5) | 368 (37.1) | |
| 18 | 211 (10.7) | 76 (7.8) | 135 (13.6) | |
| Socioeconomic level, n (%) | <0.133* | |||
| Low | 639 (32.5) | 309 (31.7) | 330 (33.3) | |
| Medium | 650 (33.0) | 309 (37.7) | 341 (34.4) | |
| High | 678 (34.5) | 357 (36.6) | 321 (32.3) |
[i] Note: n, absolute frequency; IQR, interquartile range; *chi-square test; †Mann–Whitney U-test.
Figure 1
Trends in (A) weekly frequency and (B) total daily and weekly duration of walking in adolescents (2007–2017/2018). *p < 0.05; **p < 0.001.
Table 2
Trends in weekly walking time and results of logistic regression for subgroups of sociodemographic correlates of insufficient walking practice among adolescents in Florianópolis, Brazil (2007–2017/2018).
| VARIABLE | WALKING DURATION (MIN/WEEK) (95% CI) | Δ (%) | OR* (95% CI) | |
|---|---|---|---|---|
| 2007 | 2017/2018 | 2017/2018 vs 2007 | ||
| Sex | ||||
| Male | 277.0 (248.2–305.7) | 160.0 (145.4–174.6) | –42.2 | 2.83 (2.00–4.05) |
| Female | 237.6 (220.1–255.0) | 132.6 (119.9–145.3) | –44.2 | 4.14 (2.66–6.43) |
| Age (years) | ||||
| 15 | 224.9 (200.2–249.5) | 126.3 (107.5–145.2) | –43.8 | 3.23 (1.74–5.98) |
| 16 | 286.7 (258.7–314–70) | 138.5 (121.4–155.6) | –51.7 | 4.36 (2.66–7.15) |
| 17 | 256.1 (225.8–286.4) | 163.1 (145.5–180.8) | –36.3 | 2.89 (1.87–4.47) |
| 18 | 231.3 (225.8–286.4) | 149.8 (123.3–176.3) | –31.5 | 2.73 (1.05–7.06) |
| Socioeconomic level | ||||
| Low | 251.3 (224.6–278.0) | 134.8 (117.5–152.1) | –46.4 | 3.48 (2.13–5.68) |
| Medium | 233.3 (207.7–259.9) | 142.9 (128.2–157.7) | –38.7 | 3.01 (1.81–4.99) |
| High | 270.8 (243.2–298.4) | 163.0 (144.5–181.6) | –39.8 | 3.39 (2.21–5.20) |
[i] OR, odds ratio; CI, confidence interval. Data from 2007 were used as a reference. *OR for sex was adjusted for age and socioeconomic level, OR for age was adjusted for sex and socioeconomic level, and OR for socioeconomic level was adjusted for sex and age. All OR values are significant at p < 0.001.