Recruitment and reach in a pragmatic behavioral weight loss randomized controlled trial: implications for real-world primary care practice

Table 3 Demographics and BMI of enrolled participants versus non-participants who were patients at participating clinics

	Enrolled participants (n = 1432, 36 clinics)	Non-participants (n = 17,497, 36 clinics)^a	p value
	Mean (SD)	Mean (SD)	p value
Age	54.1 (4.1)	51.3 (4.3)	< 0.001
BMI (kg/m²) from registry	36.5 (0.7)	35.6 (1.2)	< 0.001
Sex
Female %	76.9% (18.0)	55.0% (15.6)	< 0.001
Race/Ethnicity
White non-Hispanic %	95.8% (4.9)	94.3% (10.2)	0.26
White Hispanic %	1.7% (2.6)	3.1% (8.7)	0.23
Other %	2.5% (3.4)	2.7% (2.6)	0.79
Rurality
Large %	35.9% (38.3)	37.7% (37.8)	0.05
Small %	17.8% (27.8)	20.6% (28.0)	0.03
Isolated %	46.3% (36.5)	41.7% (34.4)	0.001
Months since last clinic visit	3.9 (1.4)	4.7 (1.8)	0.02

Data are reported as means at the clinic level
^aMissing data for non-participants from full sample varies based on variables included in each practice list; n = 16,794 for age, 17,420 for sex, 15,808 for race/ethnicity, 17,497 for rurality, 15,678 for months since last visit, and 15,747 for BMI

ISSN: 2731-4553