Table 2.
Demographic and other baseline characteristics by treatment group.
| Characteristic | Treatment group | Total (N=301) |
P valuea | ||
|
|
Basic (n=143) |
Enhanced (n=158) |
|
|
|
| Sex (male), n (%) | 59 (47.2) | 66 (52.8 ) | 125 (41.5 ) | .93 | |
| BMI group strata |
|
|
|
|
|
|
|
25 to <30 | 50 (46.7 ) | 57 (53.3 ) | 107 (35.5) | .97 |
|
|
30 to <35 | 58 (48.3) | 62 (51.7) | 120 (39.9) |
|
|
|
35 to <40 | 35 (47.3) | 39 (52.7) | 74 (24.6) |
|
| Current or previous smoker (never smoked), n (%) | 128 (47.8) | 140 (52.2) | 268 (89.0) | .91 | |
| Highest level of education, n (%) |
|
|
|
|
|
|
|
High school | 43 (47.8) | 47 (52.2) | 90 (29.90) | .60 |
|
|
Trade/diploma | 46 (44.2) | 58 (55.8) | 104 (34.6) |
|
|
|
University degree | 37 (54.4) | 31 (45.60) | 68 (2.6) |
|
|
|
Higher university degree | 17 (44.7) | 21 (55.3) | 38 (12.6) |
|
| Weekly household income (AU $), n (%) |
|
|
|
|
|
|
|
<$700 | 12 (50.0) | 12 (50.0) | 24 (8.0) | .77 |
|
|
$700 to <$1000 | 8 (50.0) | 8 (50.0) | 16 (5.6) |
|
|
|
$1000 to <$1400 | 20 (57.1) | 15 (42.9) | 35 (11.6) |
|
|
|
≥$1500 | 92 (46.0) | 108 (54.0) | 200 (66.4) |
|
| Country of birth (Australia), n (%) | 132 (48.4) | 141 (51.6) | 273 (90.7) | .45 | |
| Age (years), mean (SD) | 41.9 (10.1) | 42.0 (10.3) | 41.9 (10.2) | .91 | |
| Height (m), mean (SD) | 1.7 (0.1) | 1.7 (0.1) | 1.7 (0.1) | .53 | |
| Weight (kg), mean (SD) | 94.4 (15.5) | 93.4 (13.9) | 93.9 (14.7) | .53 | |
| Body mass index (kg/m2), mean (SD) | 32.2 (3.7) | 32.2 (4.1) | 32.2 (3.9) | .95 | |
| Waist circumference at umbilicus (cm), mean (SD) | 106.8 (10.2) | 106.7 (11.5) | 106.7 (10.9) | .98 | |
| Waist circumference at narrowest point (cm), mean (SD) | 98.3 (11.6) | 97.8 (11.2) | 98.1 (11.0) | .70 | |
| Waist-to-height ratio at umbilicus, mean (SD) | 0.6 (0.1) | 0.6 (0.1) | 0.6 (0.1) | .76 | |
| Waist-to-height ratio at narrowest point, mean (SD) | 0.58 (0.06) | 0.58 (0.06) | 0.58 (0.06) | .94 | |
| Systolic blood pressure (mmHg), mean (SD) | 121 (13) | 121 (12) | 121 (12) | .97 | |
| Diastolic blood pressure (mmHg), mean (SD) | 79 (10) | 79 (10) | 79 (10) | .88 | |
| Resting heart rate (bpm), mean (SD) | 69 (11) | 68 (10) | 68 (10) | .56 | |
| Total serum cholesterol (mmol/L), mean (SD) | 5.1 (0.9) | 5.1 (1.0) | 5.1 (1.0) | .54 | |
| LDL cholesterol (mmol/L), mean (SD) | 3.1 (0.8) | 3.0 (0.9) | 3.1 (0.8) | .26 | |
| HDL cholesterol (mmol/L), mean (SD) | 1.3 (0.3) | 1.3 (0.3) | 1.3 (0.3) | .78 | |
| Triglycerides (mmol/L), mean (SD) | 1.6 (0.8) | 1.8 (1.1) | 1.7 (1.0) | .09 | |
| LDL to HDL ratio, mean (SD) | 2.53 (0.79) | 2.39 (0.77) | 2.46 (0.78) | .14 | |
| Glucose (mmol/L), mean (SD) | 4.7 (0.7) | 4.7 (0.6) | 4.7 (0.7) | .35 | |
| Insulin (mIU/L), mean (SD) | 11.1 (11.7) | 10.5 (11.3) | 10.8 (11.4) | .67 | |
| Physical functioning (SF36), mean (SD) | 85.9 (13.5) | 83.9 (18.4) | 84.9 (16.3) | .30 | |
| Mental health (SF36), mean (SD) | 73.5 (16.1) | 73.2 (17.4) | 73.4 (16.8) | .89 | |
| Total physical activity MET (min/week), mean (SD) | 3028 (3188) | 2877 (3100) | 2948 (3137) | .69 | |
| Cognitive restraint scale, mean (SD) | 13.3 (3.0) | 13.4 (2.9) | 13.3 (3.0) | .70 | |
| Uncontrolled eating scale, mean (SD) | 21.1 (4.8) | 20.9 (5.3) | 21.0 (5.0) | .63 | |
| Emotional eating score, mean (SD) | 7.7 (2.3) | 7.7 (2.6) | 7.7 (2.5) | .93 | |
| Total energy intake, mean (SD) | 9983 (3278) | 9972 (3236) | 9977 (3251) | .98 | |
a P values are from ANOVA for continuous measures and from a chi-square tests for categorical measures.