Table 2.

Clinical changes of Mexican-American participants in the HEART Phase II community-based cohort study on the U.S.–Mexico border from 2009 to 2013, grouped by quartiles of intervention attendance.

Variable	Weight (pounds)				Hip circumference (inches)				Waist Circumference (inches)
	Pre	Post	Change	p-Valuea	Pre	Post	Change	p-Value	Pre	Post	Change	p-Value
TOTAL ATTENDANCE
Quartile 1 (reference)	184.55	184.56	+0.01		44.11	43.70	−0.41		39.68	39.10	−0.56
Quartile 2	179.92	178.76	−1.16	0.121	44.37	43.94	−0.43	0.850	39.04	38.25	−0.79	0.491
Quartile 3	168.80	166.35	−2.45	<0.001**	43.45	42.78	−0.67	0.344	38.07	36.49	−1.58	0.008**
Quartile 4	179.76	174.61	−5.15	<0.001**	44.39	43.26	−1.13	<0.001**	38.83	37.63	−1.20	0.047*
	Hours of exercise per week				Exercise 30 min 3 days per week (% yes)				Eat five fruits/vegetables per day (% yes)
	Pre	Post	Change	p-Value	Pre	Post	Change	p-Value	Pre	Post	Change	p-Value
TOTAL ATTENDANCE
Quartile 1 (reference)	2.48	3.29	+0.81		38.0 %	65.3 %	+27.3%		31.6%	46.3%	+14.7%
Quartile 2	2.49	4.03	+1.54	0.174	42.6 %	82.4 %	+39.8%	0.002**	33.3%	69.4%	+36.1%	<0.001**
Quartile 3	1.91	4.75	+2.84	0.003**	43.1 %	94.1 %	+51.0%	<0.001**	32.0%	68.9%	+36.9%	0.008**
Quartile 4	2.76	6.63	+3.87	<0.001**	48.5 %	99.0 %	+51.5%	<0.001**	35.5%	80.2%	+54.7%	<0.001**

^ap-Values are based on regression analyses using generalized estimating equations (GEE) taking into account nested data structure, controlling for: baseline value, age, sex, income, and acculturation. To assess whether greater attendance is associated with greater improvements in health outcomes changes are compared across quartiles of attendance (Quartile Preference). *Significant compared to reference group on p < 0.05, **significant on p < 0.01.