Table 1 Descriptive Summary of Participant Baseline Characteristics: Overall Study Population, Face-to-Face Group, Internet-Mediated Group, and Internet-Only Group

Gender No. (%)

   Male

32 (16.7%)

7 (10.8%)

14 (21.5%)

11 (17.7%)

   Female

160 (83.3%)

58 (89.2%)

51 (78.5%)

51 (82.3%)

Age (y) Mean (SD)

38.7 (12.0)

37.6 (12.4)

39 (13.0)

39.6 (10.5)

Body Mass Index Mean (SD)

32.1 (7.53)

31.3 (7.63)

32.0 (7.53)

32.0 (7.74)

Employment Status No. (%)

   Full-time

108 (56.3%)

36 (55.4%)

37 (56.9%)

35 (56.5%)

   Part-time

38 (19.8%)

12 (18.5%)

13 (20%)

13 (21%)

   Home Duties

16 (8.3%)

5 (7.7%)

4 (6.2%)

7 (11.3%)

   Student

17 (8.9%)

5 (7.7%)

9 (13.8%)

3 (4.8%)

   Not working/Retired

13 (6.8%)

7 (10.8%)

2 (3.1%)

4 (6.5%)

History of Internet Use No. (%)

   < 6-months

23 (12%)

11 (16.9%)

4 (6.2%)

8 (12.9%)

   6 – 12 months

9 (4.7%)

2 (3.1%)

4 (6.2%)

3 (4.8%)

   1 – 1.5 years

14 (7.3%)

7 (10.8%)

4 (6.2%)

3 (4.8%)

   > 2 years

23 (12%)

7 (10.8%)

9 (13.8%)

7 (11.3%)

   > 3 years

123 (64.1%)

38 (58.5%)

44 (67.7%)

41 (66.1%)

Internet Self-efficacy# Mean (SD)

3.36 (0.88)

3.16 (0.9)

3.55 (0.74)*

3.37 (0.96)

Physical Activity Self-efficacy, Mean (SD)

2.98 (0.71)

2.84 (0.70)

3.18 (0.75)*

2.92 (0.64)

Social Support for Physical Activity, Mean (SD)

2.36 (0.66)

2.20 (0.70)

2.39 (0.66)

2.49 (0.61)

Activity Status No. (%)

   Inactive

157 (81.8%)

52 (80%)

53 (81.5%)

52 (83.9%)

   Active

35 (18.2%)

13 (20%)

12 (18.5%)

10 (16.1%)

Physical Activity (minutes/week) median (25–75 percentile)

47.5 (0–108.8)

60.0 (0–107.5)

40.0 (0–105.0)

42.5 (0–120)

At least 75% Program Exposure No. (%)

43.8% (93)

27.7% (18)

50.8% (33)

53.2% (33)

Drop-out No. (%)

17.2% (33)

20% (13)

21.5% (14)

9.7% (6)