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Table 5 Intervention-induced changes in physical activity relative to selected participant characteristics

From: Effect of a 1-year intervention comprising brief counselling sessions and low-dose physical activity recommendations in Japanese adults, and retention of the effect at 2 years: a randomized trial

 

Group

Baseline

+1-year

+2-year

Interaction effect 1

Baseline

+1-year

Baseline

+2-year

MVPA (MET-h/d)

vs. sex

Women

2.9 ± 1 (N = 128)

3.6 ± 1.5 (N = 114)¥

3.4 ± 1.5 (N = 102)¥

p < 0.001

p = 0.001

p = 0.004

Men

2.3 ± 1.1 (N = 55)

Ø(p = 0.005)

3.7 ± 2.4 (N = 52) ¥

ns

3.7 ± 1.5 (N = 41)¥

ns

p < 0.001

p = 0.010

MVPA (MET-h/d)

vs. age group

30–39 year-old

2.6 ± 1.1 (N = 43)

3.3 ± 1.8 (N = 34)

3.1 ± 2.3 (N = 26)

ns

N/A

N/A

40–49 year-old

2.6 ± 1.1 (N = 50)

4.0 ± 2.4 (N = 47)

3.8 ± 1.8 (N = 38)

N/A

N/A

50–59 year-old

2.7 ± 1.0 (N = 67)

3.4 ± 1.3 (N = 63)

3.3 ± 1.5 (N = 58)

N/A

N/A

60 year-old or more

3.2 ± 1.1 (N = 23)

4.1 ± 1.4 (N = 22)

3.7 ± 1.6 (N = 21)

N/A

N/A

MVPA (MET-h/d)

vs. MVPA level at BL

Not active at BL (1st tertile)

1.6 ± 0.4 (N = 61)

N/A

2.9 ± 2.3 (N = 52)¥

2.4 ± 1.7 (N = 44)¥

p = 0.003

p = 0.001

p = 0.011

Moderately active at BL (2nd tertile)

2.6 ± 0.2 (N = 58)

N/A

3.7 ± 1.4 (N = 54)¥

3.7 ± 1.8 (N = 47)¥

Ø(vs. 1st tertile: p = 0.002)

p < 0.001

p = 0.001

More active at BL (3rd tertile)

3.8 ± 0.7 (N = 64)

N/A

4.2 ± 1.4 (N = 60)

Ø(vs. 1st tertile: p = 0.002)

4.1 ± 1.5 (N = 52)

Ø (vs. 1st tertile: p < 0.001)

ns

ns

  1. Mean ± SD. BL, baseline; N/A, non-applicable (for instance, when pairwise comparisons are not conducted due to the absence of interaction or when baseline MVPA values have been used to calculated tertiles); ns, non-significant; PA, physical activity; “+1-year”: end of the intervention; “+2-year”: 1 year after the end of intervention
  2. 1All the analyses output a significant time effect. A significant group effect was noted for the “vs. PA level at BL” analysis only
  3. ¥Different from the baseline
  4. ØA group effect (cf. details in the table)