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Table 3 Baseline, 6-months and two-year follow-up outcomes and differences between the study groups.

From: Comparative effectiveness of lifestyle interventions on cardiovascular risk factors among a Dutch overweight working population: A randomized controlled trial

  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)
  1. 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.