Comparison of waist measurements: A methodologic issue in longitudinal studies

Carson, Catherine A.; Meilahn, Elaine N.; Caggiula, Arlene W.

doi:10.1016/0002-8223(94)91946-1

Cited by 7 publications

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Discussionmentioning

confidence: 99%

“…Although the panel found no evidence that variation in WC measurement protocol had substantial influence on the prediction of risk for morbidity or mortality risk, it is clear that variation in placement can profoundly influence the absolute WC measure (129)(130)(131)(132)(133)(134)(135) (Table S11). Wang et al (134) reported that for a racially mixed sample of 49 males and 62 females with primarily normal weight, the greatest absolute difference between the lowest and highest measurements from four common WC protocols obtained between the lowest rib and iliac crest was~2 cm for men and~4 cm for women.…”

Section: Discussionmentioning

confidence: 99%

“…Absent from the literature was a single study that simultaneously considered the association between multiple WC protocols and morbidity or mortality. Because of the high correlation among WC measurement sites (129,130) and subsequent problems of multicollinearity, it would be difficult to design a study to identify one WC protocol for optimal prediction of morbidity and mortality. Indeed, the high correlation among WC measures at least partially explains the comparable associations between WC and all outcomes across the studies reviewed here.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Does the relationship between waist circumference, morbidity and mortality depend on measurement protocol for waist circumference?

et al. 2007

View full text Add to dashboard Cite

There is currently no consensus regarding the optimal protocol for measurement of waist circumference (WC), and no scientific rationale is provided for any of the WC protocols recommended by leading health authorities. A panel of experts conducted a systematic review of 120 studies (236 samples) to determine whether measurement protocol influenced the relationship of WC with morbidity of cardiovascular disease (CVD) and diabetes and with mortality from all causes and from CVD. Statistically significant associations with WC were reported for 65% (152) of the samples across all outcomes combined. Common WC protocols performed measurement at the minimal waist (33%), midpoint (26%) and umbilicus (27%). Non-significant associations were reported for 27% (64) of the samples. Most of these protocols measured WC at the midpoint (36%), umbilicus (28%) or minimal waist (25%). Significant associations were observed for 17 of the remaining 20 samples, but these were not significant when adjustment was made for covariates. For these samples, the most common WC protocols were the midpoint (35%) and umbilicus (30%). Similar patterns of association between the outcomes and all WC protocols were observed across sample size, sex, age, race and ethnicity. Our findings suggest that WC measurement protocol has no substantial influence on the association between WC, all-cause and CVD mortality, CVD and diabetes.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Does the relationship between waist circumference, morbidity and mortality depend on measurement protocol for waist circumference?

et al. 2007

View full text Add to dashboard Cite

show abstract

“…Carefully planned and collected process evaluation data are then used to help clarify relationships among theoretical constructs and enhance understanding of program effects by linking intervention exposure to study outcomes [8,43,[47][48][49][50]. An overview of the study measures are provided in Table 3 (primary outcome) and 4 (cognitive and motivational mediators) [51][52][53][54][55][56][57][58][59][60][61]. These are the outputs that are presented in the logic model.…”

Section: Approach To Process Evaluation and Assessment Of Mediators Amentioning

confidence: 99%

An overview of “The Active by Choice Today” (ACT) trial for increasing physical activity

Wilson

Kitzman-Ulrich

Williams

et al. 2008

Contemporary Clinical Trials

View full text Add to dashboard Cite

Background: Although school-based behavioral interventions for increasing physical activity (PA) in children and adolescents have been conducted, little evidence suggests that these curriculum-based approaches lead to increases in overall activity outside of program days. The overall goal of the "Active by Choice Today" (ACT) trial is to expand the body of knowledge concerning the factors that influence long-term increases in PA in underserved adolescents (low socioeconmic status, minorities) during their middle school years. Design and setting:An overview of the ACT study design, theoretical framework, process evaluation, and primary hypotheses is presented. The trial involves twenty-four middle schools (1560 6th graders) in South Carolina that are randomly assigned to one of two after-school programs (motivational and life skills intervention, or general health education). Intervention:The intervention integrates constructs from Self-Determination and Social Cognitive Theories to enhance intrinsic motivation and behavioral skills for PA. The intervention targets skill development for PA outside of program days and the after-school program social environment Publisher's Disclaimer: This article was published in an Elsevier journal. The attached copy is furnished to the author for non-commercial research and education use, including for instruction at the author's institution, sharing with colleagues and providing to institution administration. Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. (autonomy, choice, participation, belongingness, fun, enjoyment, support) is designed to positively impact cognitive mediators (self-efficacy, perceived competence), and motivational orientation (intrinsic motivation, commitment, positive self-concept). NIH Public Access Main hypotheses/outcomes:It is hypothesized that the 17-week motivational and life skills intervention will lead to greater increases in moderate-to-vigorous PA (based on 7-day accelerometry estimates) at post-intervention as compared to the general health education program. Conclusions:Implications of this innovative school-based trial are discussed.

show abstract

“…A variety of measures of body mass and body fat exist, each measuring and expressing a slightly different aspect of general obesity, fat distribution, patterning, or fat percentage (57)(58)(59). Body mass index (weight/height 2 ) is considered a good surrogate measure of percent body fat (60) or total adipose tissue as measured by magnetic resonance imaging (r women = 0.92, r men = 0.85) (61).…”

Section: Insulin Insulin Resistance and Obesitymentioning

confidence: 99%