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AB Purpose: This study described participant adherence to wearing the accelerometer and accelerometer performance in a cohort study of adults. Methods: From 2008 to 2011, 16,415 US Hispanic/Latino adults age 18-74 yr enrolled in the Hispanic Community Health Study/Study of Latinos. Immediately after the baseline visit, participants wore an Actical accelerometer for 1 wk. This study explored correlates of accelerometer participation and adherence, defined as wearing it for at least three of a possible six days for >=10 h[middle dot]d-1. Accelerometer performance was assessed by exploring the number of different values of accelerometer counts per minute for each participant. Results: Overall, 92.3% (n = 15,153) had at least 1 d with accelerometer data and 77.7% (n = 12,750) were adherent. Both accelerometer participation and adherence were higher among participants who were married or partnered, reported a higher household income, were first-generation immigrants, or reported lower sitting time. Participation was also higher among those with no stair limitations. Adherence was higher among participants who were male, older, employed or retired, not US born, preferred Spanish over English, reported higher work activity or lower recreational activity, and with a lower body mass index. Among the sample that met the adherence definition, the maximum recorded count per minute was 12,000, and there were a total of 5846 different counts per minute. On average, participants had 112.5 different counts per minute over 6 d (median, 106; interquartile range, 91-122). The number of different counts per minute was higher among men, younger ages, normal weight, and those with higher accelerometer-assessed physical activity. Conclusion: Several correlates differed between accelerometer participation and adherence. These characteristics could be targeted in future studies to improve accelerometer wear. The performance of the accelerometer provided insight into creating a more accurate nonwear algorithm.

Background: Social ties within social networks have been shown to influence healthy lifestyles. However, little is known about the association among size of familial social networks, social network dynamics (such as frequency of contact and perceived connectedness), and healthy lifestyle factors in Hispanic/Latino adults. We examined cross-sectional associations of central family social network size, as well as frequency of contact with central family members (children, parents, in-laws) and perceived connectedness to extended family members (uncles, aunts, and other relatives), with individual healthy lifestyle factors. Methods: Data were analyzed from 15,511 self-identified Hispanic/Latino adults ages 18-74 years from the Hispanic Community Health Study/Study of Latinos (HCHS/SOL). Size of central family, frequency of contact with central family members in past 2 weeks, and perceived connectedness to extended family, were categorized into approximate tertiles based on the distribution of the data. Healthy lifestyle factors included alcohol use (men 2 , physical activity in the highest sex-specific 40%, and healthy diet in the highest sex-specific 40%. Survey logistic regression was used to compute odds ratios [OR] and 95% confidence intervals [CI], with models adjusted for age, sex, education, income, Hispanic/Latino background, employment status, religion, church attendance, marital status, acculturation, and language preference. Results: Compared to participants with a central family social network of 0-3 individuals, those with a family social network of 4-5 members were significantly less likely to have a healthy diet (OR: 0.86; 95% CI: 0.74, 0.99) or a healthy BMI (OR: 0.74; 95% CI: 0.65, 0.85). Also, those with 6-11 members were also significantly less likely to have a healthy BMI (OR: 0.58; 95% CI: 0.49, 0.69). Individuals reporting frequent contact with 3-4 and 5-11 family members were less likely to have a healthy BMI (OR: 0.76; 95% CI: 0.66, 0.87; OR: 0.60; 95% CI: 0.51, 0.72; respectively) versus those reporting frequent contact with only 0-2 family members. However, individuals who reported feeling connected to 3-5 extended family members were more likely to have a healthy diet (OR: 1.16; 95% CI: 1.00, 1.36) and healthy BMI (OR: 1.15; 95% CI: 1.00, 1.33), and those who felt connected to 6-7 extended family members were more likely to be non-smokers and to have a healthy BMI (OR: 1.16; 95% CI: 1.00, 1.34; OR: 1.20, 95% CI: 1.20; 95% CI: 1.04, 1.38; respectively) versus those who reported feeling connected to 0-2 extended family members. Conclusions: These findings suggest that social network size and dynamics may play an important role in influencing healthy lifestyle factors among Hispanic/Latino adults. Further, specific influences may differ based on the type of relationship.

Introduction: Hispanic/Latinos are the largest ethnic minority in United States with significant cultural and racial heterogeneity. The recent cholesterol treatment guidelines are mainly based on estimates from non-Hispanic white and black cohorts. Aim: To estimate the proportion of US Hispanic adults potentially affected by recent changes in recommendations for statin therapy eligibility under the 3rd National Cholesterol Education Program Adult Treatment Panel (NCEP/ATP III) and the new 2013 ACC/AHA cholesterol treatment guidelines. Methods: HCHS/SOL is a large multi-center study of Hispanics/Latinos in US communities (Bronx, NY; Chicago, IL; Miami, FL; and San Diego, CA) (n=16,415; mean age 41 years, 40% males) . We evaluated weighted prevalence of statin-treated individuals and the proportion of target population that met the eligibility criteria for statin therapy under NCEP/ATP III versus 2013 ACC/AHA cholesterol treatment guidelines. Results: A total of 1,716 (10.4%) were treated with statins in HCHS/SOL cohort. However, 3,366 (20.5%) and 5,268 (32.1%) were eligible for statin therapy under NCEP/ATP III and 2013 ACC/AHA guidelines respectively. The proportion of statin-eligible adults increased primarily among older adults from 44% to 87% and males from 19% to 39% under NCEP/ATP III guidelines and 2013 ACC/AHA guidelines respectively (Figure 1). There was also an increase in eligibility for statin therapy in middle aged adults (44% to 65%). Conclusions: Regardless of the definition for statin eligibility, Hispanics are grossly undertreated (only half and only a third of those statin-eligible under the ATP III or the new ACC/AHA guidelines respectively are receiving treatment). The eligibility of statin therapy almost doubles consistently across all Hispanic/Latinos subgroups of under the new 2013 ACC/AHA guidelines.