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Table 2 Satisfaction, usability and website usage by intervention group and age group

From: The effectiveness of a web 2.0 physical activity intervention in older adults – a randomised controlled trial

  Web 2.0 Web 1.0 Age Comparisons
  Younger Older Younger Older Age group Reference = younger adults Intervention*Age group Reference = younger adults
  M (SD) M (SD) M (SD) M (SD) HR (95% CI) HR (95% CI)
Satisfaction (min = 1, max = 35)
3 months (n = 252) 28.7 (3.7) 27.3 (3.9) 28.7 (4.2) 27.2 (3.1) 0.23 (0.06, 0.87)* 1.13 (0.17, 7.40)
12 months (n = 201) 26.9 (4.08) 26.8 (3.7) 27.4 (4.2) 26.4 (3.6) 0.38 (0.08, 1.71) 2.63 (0.31, 22.67)
18 months (n = 161) 26.8 (3.5) 25.9 (4.8) 27.2 (4.5) 26.2 (4.0) 0.32 (0.05, 1.93) 1.35 (0.10, 17.70)
Usability (System Usability Scale min = 0, max = 100)
3 months (n = 252) 67.7 (9.7) 62.9 (10.2) 67.8 (10.4) 64.8 (8.5) 0.05 (0.00, 1.58) 0.18 (0.00, 22.65)
12 months (n = 200) 63.6 (9.8) 62.7 (10.7) 64.3 (10.5) 61.0 (9.5) 0.04 (0.00, 1.90) 10.51 (0.04, 2774.51)
18 months (n = 160) 63.1 (7.5) 60.6 (12.3) 63.0 (10.7) 61.3 (10.0) 1.19 (0.00, 15.40) 0.41 (0.00, 213.49)
Days with step entry (number/week)
0–3 months (n = 332) 5.2 (2.0) 5.7 (2.1) 4.6 (2.8) 4.8 (2.3) 1.13 (0.87, 1.47) 1.09 (0.76, 1.57)
3–12 months (n = 297) 3.8 (2.8) 5.7 (2.2) 2.8 (3.0) 3.8 (2.9) 1.58 (1.05, 2.39)* 1.18 (0.68, 2.07)
12–18 months (n = 213) 2.7 (2.9) 4.5 (2.7) 1.8 (2.8) 3.2 (3.0) 1.83 (1.00, 3.35)* 1.01 (0.44, 2.30)
Time on website (seconds/week)
0–3 months (n = 332) 596 (622) 1050 (1281) 369 (343) 485 (362) 1.34 (1.01, 1.79)* 1.47 (1.01, 2.14)*
3–12 months (n = 297) 229 (279) 618 (689) 124 (218) 212 (277) 2.23 (1.41, 3.54)** 1.53 (0.85, 2.77)
12–18 months (n = 213) 148 (293) 335 (313) 59 (97) 163 (336) 2.99 (1.55, 5.78)** 0.81 (0.34, 1.92)
Number of visits (number/week)
0–3 months (n = 332) 3.7 (2.7) 4.6 (3.0) 1.6 (2.0) 2.1 (1.8) 1.27 (0.95, 1.69) 1.14 (0.79, 1.65)
3–12 months (n = 297) 1.9 (2.0) 3.5 (2.6) 0.8 (1.8) 1.0 (1.3) 1.53 (0.97, 2.43) 1.48 (0.83, 2.64)
12–18 months (n = 213) 1.6 (2.2) 2.6 (2.2) 0.5 (1.1) 0.7 (1.3) 1.61 (0.81, 3.22) 1.20 (0.51, 2.85)
  N (%) N (%) N (%) N (%) HR (95% CI) HR (95% CI)
Non-usage attrition (n = 332)
N (%) stopped using website by 18 months 87 (87.0) 47 (69.1) 86 (86.0) 53 (82.8) 0.83 (0.59, 1.16) 0.66 (0.40, 1.09)
  1. *p < .05 **p < .003. Adjusted for gender, BMI, education and employment