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. 2013 Sep 16;15(9):e200. doi: 10.2196/jmir.2603

Table 4.

Adherence grades and effect sizes, intention-to-treat sample (experimental group, Cohen’s d pre-post).

Measures <1 lesson (n=31) 1 lesson (n=46) 2 lessons (n=24) 3 lessons (n=29) ≥4 lessons (n=13)

Mean (SD) d Mean (SD) d Mean (SD) d Mean (SD) d Mean (SD) d
MHC-SF










Baseline 3.46 (0.60)
3.46 (0.70)
3.17 (0.58)
3.52 (0.52)
3.69 (0.62)

2-month 3.84 (0.61) 0.63 3.90 (0.64) 0.66 4.05 (0.81) 1.25 3.92 (0.68) 0.66 3.99 (1.04) 0.36

6-month 3.74 (0.69) 0.43 3.87 (0.79) 0.55 3.98 (0.78) 1.18 3.94 (0.76) 0.65 3.91 (1.09) 0.25
WHO-5










Baseline 10.00 (3.59)
11.74 (4.22)
9.75 (5.33)
10.41 (4.45)
12.31 (3.22)

2-month 12.00 (3.21) 0.59 12.83 (4.01) 0.26 13.34 (6.24) 0.62 12.09 (4.01) 0.40 14.69 (5.60) 0.52

6-month 11.56 (3.91) 0.42 13.28 (4.76) 0.34 13.29 (5.48) 0.65 12.80 (4.93) 0.51 14.55 (4.86) 0.54
CES-D










Baseline 17.71 (4.19)
16.28 (3.71)
17.58 (4.74)
17.41 (4.33)
14.92 (3.73)

2-month 15.21 (6.21) 0.47 13.73 (5.77) 0.53 13.99 (9.74) 0.47 13.61 (6.77) 0.67 9.31 (5.92) 1.13

6-month 14.06 (6.51) 0.67 14.42 (7.67) 0.31 12.16 (8.56) 0.78 12.03 (7.94) 0.84 9.85 (5.90) 1.03
HADS-A










Baseline 6.90 (2.53)
6.52 (2.96)
7.04 (3.21)
6.00 (3.11)
6.15 (2.03)

2-month 6.28 (2.47) 0.25 6.22 (2.88) 0.10 5.58 (3.62) 0.35 4.71 (2.58) 0.45 5.00 (2.80) 0.47

6-month 6.16 (3.19) 0.26 6.01 (3.37) 0.16 6.08 (4.00) 0.26 4.62 (2.94) 0.46 4.61 (3.40) 0.55
MOS SF health










Baseline 18.52 (2.74)
18.46 (3.82)
19.00 (3.95)
19.14 (3.55)
17.00 (3.06)

2-month 18.98 (2.74) 0.17 19.05 (3.14) 0.17 19.47 (4.05) 0.12 19.48 (2.80) 0.11 19.31 (3.43) 0.71

6-month 17.82 (2.81) –0.25 19.07 (3.29) 0.17 18.88 (4.41) –0.03 19.06 (3.30) 0.02 17.85 (3.34) 0.27
MOS SF vitality










Baseline 14.03 (2.77)
15.04 (3.17)
13.96 (3.97)
14.00 (2.87)
15.38 (2.84)

2-month 15.20 (2.16) 0.48 15.83 (3.29) 0.24 16.83 (3.81) 0.74 15.21 (2.82) 0.43 15.85 (3.24) 0.16

6-month 15.03 (2.77) 0.36 15.90 (3.64) 0.25 15.85 (4.23) 0.46 16.01 (3.67) 0.61 15.62 (3.91) 0.07