Table 3.
Baseline, 6-months and two-year follow-up outcomes and differences between the study groups.
| Controls (n = 49) |
Phone (n = 44) |
Internet (n = 48) |
Phone T6 | Phone T24 | Internet T6 | Internet T24 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Baseline | T6 | T24 | Baseline | T6 | T24 | Baseline | T6 | T24 |
Change vs. control (95% CI) |
Change vs. control (95% CI) |
Change vs. control (95% CI) |
Change vs. control (95% CI) |
|
| Body weight (SD), kg | 91.5 (10.6) |
89.8 (10.4) |
90.3 (10.8) |
91.7 (13.6) |
89.3 (13.7) |
90.3 (14.8) |
93.3 (15.0) |
90.5 (15.3) |
90.0 (15.4) |
-0.7 (-2.7 to 1.2) |
-0.3 (-2.6 to 2.0) |
-1.0 (-2.9 to 0.9) |
-2.1 (-4.4 to 0.2) |
| Waist (SD), cm | 101.7 (8.5) |
99.2 (9.3) |
99.3 (9.7) |
99.9 (10.2) |
96.4 (11.0) |
97.9 (11.0) |
102.9 (11.1) |
99.4 (11.4) |
99.3 (11.9) |
-1.1 (-3.1 to 0.9) |
0.3 (-2.0 to 2.6) |
-1.0 (-2.9 to 0.9) |
-1.1 (-3.3 to 1.1) |
| SSK (SD), mm a | 77.8 (24.8) |
72.5 (25.5) |
75.6 (19.1) |
82.3 (24.5) |
73.5 (30.4) |
81.0 (25.7) |
94.1 (36.0) |
89.2 (41.8) |
83.7 (28.7) |
-2.4 (-8.4 to 3.7) |
0.1 (-5.3 to 8.1) |
0.1 (-6.0 to 6.2) |
-3.3 (-10.1 to 3.5) |
| SBP (SD), mmHg | 135.2 (11.4) |
134.2 (14.2) |
133.7 (15.3) |
138.2 (15.6) |
136.4 (17.0) |
136.4 (15.9) |
138.2 (19.9) |
137.7 (15.2) |
135.4 (16.5) |
0.1 (-4.3 to 4.6) |
0.7 (-4.2 to 5.7) |
1.5 (-2.9 to 5.8) |
-3.0 (-5.1 to 4.5) |
| DBP (SD), mmHg | 87.0 (9.5) |
85.5 (9.9) |
84.6 (9.8) |
89.6 (10.4) |
88.4 (11.2) |
86.9 (12.0) |
91.8 (11.4) |
90.2 (9.8) |
88.1 (10.5) |
1.0 (-2.0 to 4.0) |
0.5 (-2.8 to 3.8) |
1.3 (-1.7 to 4.2) |
0.2 (-3.1 to 3.5) |
| TC (SD), mmol/l | 4.9 (0.8) |
5.1 (0.6) |
4.9 (0.8) |
4.9 (0.9) |
4.9 (0.9) |
4.8 (1.0) |
5.1 (0.9) |
5.2 (0.9) |
5.0 (1.0) |
-0.2 (-0.5 to -0.0) |
-0.0 (-0.3 to 0.3) |
-0.1 (-0.3 to 0.1) |
-0.1 (-0.4 to 0.2) |
| VO2max (SD), ml/kg/min | n = 49 38.8 (5.7) |
n = 45 39.2 (4.8) |
n = 39 39.7 (7.6) |
n = 44 37.6 (6.6) |
n = 37 38.7 (7.8) |
n = 37 38.8 (8.5) |
n = 48 36.3 (5.0) |
n = 45 39.1 (6.4) |
n = 40 39.6 (7.2) |
0.5 (-1.6 to 2.6) |
0.2 (-2.3 to 2.8) |
1.9 (-0.2 to 3.9) |
2.3 (-0.2 to 4.8) |
Abbreviations: SD, standard deviation; Waist, waist circumference; SSK, sum of skinfolds; SBP, systolic blood pressure; DBP, diastolic blood pressure; TC, total cholesterol; VO2max, maximal oxygen uptake. a For seven subjects (control: n = 2, phone: n = 2, Internet: n = 3) one or more skinfolds were outliers, apparently due to measurement errors. These subjects were excluded from the analyses.