step one which have double input to have consistency examining. Most of the analyses was indeed did having fun with STATA version several.0. Shapiro-Wilk take to was utilized to research normality of the delivery. Student’s t-attempt was utilized evaluate %BF average values ranging from folk. Concordance within %BF mentioned of the Durnin and you will Womersley equation and you can BIA which have the fresh new %BF measured of the DXA (practical reference), is reviewed with the concordance relationship coefficient (CCC) otherwise Lin plots of land recommended because of the Bland and you will Altman [28, 33, 34]. CCC combines reliability and accuracy to establish perhaps the findings deviate somewhat about line of perfect concordance (45°). A worth of you to corresponds to new regression line lying precisely on the line out of primary concordance . The next slashed-away from activities was indeed then followed: negligible concordance (CCC = 0.00–0.10); weakened concordance (CCC = 0.10–0.39); reasonable concordance (CCC = 0.40–0.69); solid concordance (CCC = 0.70–0.89) and incredibly good concordance (CCC = 0.90–step one.00) .
Bland and you can Altman’s method boasts the fresh new plotting off a good concordance chart (mediocre instead of differences), while the computation of your own restriction from concordance [twenty eight, 34]. This procedure allows the fresh visual comparison of your own concordance as well as the new 95% concordance limit.
Ethics approval and you will told concur
This research is actually presented according to the advice put down inside the new Report out-of Helsinki. Most of the players provided created told agree. The research Ethics Committee have approved older people Project Goiania (number: ).
Abilities
DXA and you may BIA was in fact did inside the 132 members regarding the 1st cohort. All the variables included in this study had been generally distributed. Lady exhibited large %BF values in most the methods used (p Desk 1 Ages and differing muscles composition strategies shipments because of the sex
The brand new dispersion of %BF viewpoints projected by BIA and you will SF picture as compared to DXA thinking are presented in Figs. step one to three. The brand new concordance correlation coefficient research showed a 
robust concordance ranging from BIA and you will SF picture for everyone members and certainly lady (Figs. step one and dos), while a medium concordance (0.51) is noticed for BIA for the men (Fig. 3). The better concordance in our analyses (0.85 – strong concordance) are noticed getting %BF evaluated because of the SF picture for the guys (Fig. 3), with BIA in females (0.79 – solid concordance) (Fig. 2).
Concordance plots getting body fat payment (%BF) during the older adults projected by the dual times X-beam absorptiometry (DXA), bioelectrical impedance (BIA) and the Durnin & Womersley skinfold eq. (D&W), according to Lin’s concordance correlation coefficient (CCC) and you may Bland and you can Altman’s average variation (AD) and you can 95% concordance limits (CL) for all users. Keep line = just the right concordance line, dotted line = the genuine value when you look at the Lin Chart
Concordance plots of land getting surplus fat commission (%BF) in females projected of the twin times X-beam absorptiometry (DXA), bioelectrical impedance (BIA), and also the Durnin & Womersley equation, according to Lin’s concordance correlation coefficient (CCC) and you may Fantastically dull and Altman’s mediocre differences (AD) and 95% concordance restrictions (CL). Continue line = the best concordance range, dotted range = the genuine well worth from inside the Lin Chart
Concordance plots of land having surplus fat percentage (%BF) in males projected because of the dual times X-ray absorptiometry (DXA), bioelectrical impedance (BIA), as well as the Durnin & Womersley equation, centered on Lin’s concordance relationship coefficient (CCC) and Terrifically boring and Altman’s mediocre distinction (AD) and you may 95% concordance constraints (CL). Remain line = just the right concordance range, dotted range = the true value in the Lin Chart
The study of the regression line mountain for everybody players and you may between individuals in accordance with the Lin plots of land indicated that an enthusiastic underestimation regarding %BF by BIA happens for everybody quantities of BF. But not, which underestimation expands during the higher account, mostly immediately following forty%, when using SF picture (Figs. 2 and you can step 3).
Add Comment