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