Examining Social Influence on Participation and Outcomes among a Network of Behavioral Weight-Loss Intervention Enrollees

Table 2

Sociodemographic characteristics of individual social contacts (𝑛=55).

	Total (𝑛=55)	Previous participant (𝑛=19)	Concurrent participant (𝑛=36)	𝑃 value^a
Baseline sociodemographic factors
Black (%)	72.7	78.9	69.4	0.34
Female (%)	96.4	94.7	97.2	0.58
Age (yrs)	44.3 ± 9.5	44.2 ± 10.7	44.3 ± 9.0	0.10
Weight (kg)	104.1 ± 16.1	106.3 ± 18.9	104.1 ± 16.1	0.64
BMI (kg/m^2)	39.0 ± 5.3	39.4 ± 5.4	38.8 ± 5.3	0.69
Weight loss at 6 months
Total weight loss (kg)	7.7 ± 5.9	8.7 ± 4.3	7.2 ± 6.6	0.35
% of weight loss	7.7	8.7	7.1	0.33
Behavioral adherence measures
% of group sessions attended	78.2	82.3	75.9	0.32
% of journals submitted	75.7	84.3	71.1	0.08

 ^a𝜒² test for categorical variables, independent 𝑡-test for continuous variables.