Table 1 

Baseline characteristics of the HeLPher intervention by group assignment 

Variable 
Intervention group (n = 127) 
Control group (n = 123) 
P value^{a} 


Age at baseline, mean (SD), yr 
40.6 (4.8) 
40.3 (4.8) 
0.62 
Height Mean (SD), cm 
163.1 (6.0) 
162.9 (5.6) 
0.78 
Weight, kg Weight Range, kg 
73.2 (13.8) 46.3 to 115.6 
74.6 (16.1) 44.6 to 129.6 
0.45 
BMI Mean,(SD)^{b }kg/m^{2} 
27.5 (5.1) 
28.1(5.8) 
0.40 
Hip, cm 
106.6 (11.0) 
108.1(11.8) 
0.29 
No. of children, mean, (SD) 
2.3 (0.7) 
2.4 (0.8) 
0.23 
Waist circumference mean, (SD), cm 
94.8 (12.6) 
96.8 (14.6) 
0.24 
Energy intake (kJ/day)^{d} 
6648 (2204) 
6830 (2361) 
0.55 
Energy expenditure Metmins/week^{e} 
1504 (1657) 
1653 (452) 
0.52 
Highest Education 

Up to year 10 n (%) 
25 (21.0) 
36 (30.3) 

Year 12 
25 (21.0) 
26 (21.9) 
0.31 
Trade or certificate 
33 (27.7) 
24 (20.2) 

University or higher 
36 (30.3) 
33 (27.7) 

Income ($ AUD)^{c} 

< 40,000 
22 (18.8) 
27 (22.8) 

40–60,000 
26 (22.2) 
18 (15.2) 
0.08 
60–80,000 
20 (17.0) 
26 (22.0) 

> 80,000 
31 (26.4) 
33 (27.9) 

No answer 
18 (15.3) 
14 (11.8) 

Employment (%) 

Not working 
46 (40.3) 
49 (41.1) 

Part time 
61 (53.5) 
63 (52.9) 
0.99 
Full time 
7 (6.1) 
7 (5.8) 



Abbreviations, METmins/week = MET level × minutes per day × days per week, where 1 MET is equivalent to resting energy expenditure (MET level, walking, 3.3, moderate 4.0 and vigorous 8.0) ^{a }P values from 2sample t tests for continuous variables or from chi2 tests for categorical variables ^{b }Body mass index, measured as weight in kilograms divided by height in meters squared ^{c }Numbers may vary due to missing values or incorrectly completed surveys as participants were given a 'prefer not to answer' option for income. ^{d }n = 110 intervention and n = 106 controls correctly completed food frequency questionnaires ^{e }n = 89 intervention and n = 89 controls correctly completed IPAQ activity questionnaires 

Lombard et al. Nutrition Journal 2009 8:17 doi:10.1186/14752891817 