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    Systematic and biochemical gender-situated features from people receive for the Table 1

    Systematic and biochemical gender-situated features from people receive for the Table 1

    Performance

    The study included 198 boys and 180 girls with a mean age of 9.4 and 9.2 years, respectively. Unadjusted median (25–75 IQR) of 25(OH)D and iPTH concentrations were 13.8 (10.0–19.6) ng/mL and 33.1 (22.3–48.6) pg/mL, respectively, among boys and 9.9 (6.4–15.8) ng/ml and 47.8 (32.8–76.1) pg/mL, respectively, among girls. The prevalence of obesity and BMI z-score among boys was higher than girls (p<0.001). There were higher serum concentrations of PTH and lower 25(OH)D in girls, compared to boys (p = 0.036 and p<0.001, respectively). Regarding dietary intakes, the boys consumed more energy (p<0.001), calcium (p = 0.001), vitamin D (p = 0.012), magnesium(p = 0.002), and phosphorous (p<0.001) in comparison to girls.

    Predicated on nonlinear regression activities, the connection anywhere between twenty-five(OH)D and you can iPTH try rapid. Brand new estimated repaired effects (and you may practical error) were: a beneficial = step 3.598 (0.110), b = 0.868 (0.465), c = 0.190 (0.141) for the women, and you can an excellent = step 3.092 (cuatro.495), b = 0.553 (4.338), c = 0.014 (0.151) for the males. Finally equations have been the following:

    1. For the lady (Fig 1A): iPTH (pg/ ml) = step three.598 + 0.868 ? exp (-0.190 ? 25(OH)D ) and you may a plateau inside iPTH level at the forty two pg/mL is actually observed during the a gel twenty-five(OH)D concentration of whenever 20 ng/mL (95% CI: seven.step 1 so you can thirty two.2).
    2. During the boys (Fig 1B): iPTH (pg/ ml) = 3.092 + 0.553 ? exp (-0.014 ? 25(OH)D) and there are zero plateau from inside the gel iPTH given that 25(OH)D attention improved.

    Since there was no plateau to have iPTH for the boys, depending on a suggest gel record-iPTH intensity of step 3.53 pg/mL, victims was in fact split up into a couple teams . According to research by the rapid equation offered a lot more than, it could be computed one inside boys, a suggest serum log-iPTH intensity of 3.53 pg/mL received during the serum twenty five(OH)D density regarding 15 ng/mL.