Table 1.

Summary of study measures and evaluation time points in the LOWPK trial

Data element	Instrument/evaluation protocol	Length in minutes	Purpose	Collection time points
Cardiovascular disease risk factors
Blood pressure	Clinical measurement	5	2° outcome	Baseline 6 months 18 months
Anthropometric measures (e.g., body mass index)	Clinical measurement	5	2° outcome	Baseline 6 months 18 months
Fingerstick blood glucose	Participant measurement	1	2° outcome	Continuous self-monitoring
Blood lipids	Laboratory measurement	Blood draw for all labs	2° outcome	Baseline 6 months 18 months
Hemoglobin A1c	Laboratory measurement		1° outcome	Baseline 6 months 18 months
Sociodemographic information
Age Education Marital status Social support	Self-administered questionnaire	2	Potential confounders and/or effect modifiers	Baseline 6 months 18 months
Functional/mood constructs
Short Form-12 (Ware et al., 1996) Depressive scale (Radloff, 1977) Self-efficacy (Clark & Dodge, 1999)	Self-administered questionnaire	15	Potential confounders and/or effect modifiers	Baseline 6 months 18 months
History of diabetes, hypertension, dyslipidemia	Self-administered questionnaire	2	Potential confounders and/or effect modifiers	Baseline 6 months 18 months
Behavioral risk factors
Smoking Physical activity Alcohol consumption Modified block Food frequency Questionnaire Behaviors	Self-administered questionnaire	15	Potential confounders and/or effect modifiers 2° outcomes	Baseline 6 months 18 months
Cultural factors
Acculturation Ceremonial tobacco use Traditional health practices	Self-administered questionnaire	2	Potential confounders and/or effect modifiers	Baseline 6 months 18 months
Current medication use	Interview	2	Potential confounders and/or effect modifiers	Baseline
Cost-related measures
Intervention costs Medical service use	Self- and interviewer-administered; electronic medical record query	10	2° outcomes	Baseline 6 months 12 months 18 months
Geocoding	Staff measurement	<1	Potential confounder and/or effect modifier in cost analyses	Baseline