Linear Regression Analysis of NTx in 24 and 2-hours Diuresis in Patients with Osteoporosis
Lineárna regresná analýza hodnôt NTx v 24 - a 2hodinovej rannej diuréze u pacientov s osteoporózou
Vyšetrili sme 79 pacientov (n = 79) s primárnou a sekundárnou osteoporózou, z toho 31 mužov (nM = 31) vo veku 31–61 rokov a 48 žien (nF = 48) vo veku 33–65 rokov. U týchto pacientov sme sledovali aminoterminálny telopeptid kolagénu I organickej kostnej matrix (NTx) v 24 - (NTx 24) a v 2hodino - vej rannej (NTx 2) diuréze (od 6.00–8.00 h). Cieľ práce: zodpovedať otázky: 1. Je štatisticky významná korelácia medzi hodnotami NTx v 24 - a v 2hodinovej diuréze u pacientov s osteoporózou? 2. Je štatisticky významný rozdiel v hladine NTx v 24 - a v 2hodinovej diuréze u toho istého pa - cienta? 3. Je 2hodinová diuréza pre stanovenie hladín NTx u pacientov s osteoporózou presnejšia než doteraz používaný odber prvého alebo druhého ranného moču, ktorý sa odoberá v ktorúkoľvek rannú hodinu? Štatistická analýza: K testovaniu normality rozdelenia v každom súbore sme použili d’Agostinov test. Jednosmernú závislosť náhodnej premennej y (NTx 2) od nezávislej premennej x (NTx 24) sme vyjadrili pomocou lineárnej regresie. Výsledky: Medzi hodnotami NTx 24 (os x) a NTx 2 (os y) sa zistila štatisticky významná (p
Klíčová slova:
NTx, osteoresorpcia, diuréza, osteoporóza
Authors:
J. Wendlová
Authors‘ workplace:
Osteologická ambulancia, Dérerova NsP, Bratislava
Published in:
Čes. Revmatol., , 1998, No. 4, p. 169-173.
Category:
Overview
The authors examined 79 patients (n = 79) with primary and secondary osteoporosis incl. 31 men (nM = 31) aged 31–61 years and 48 women (nF = 48) aged 33 to 65 years. In these patients the authors investigated the aminoterminal telopeptide of collagen I of the organic bone matrix (NTx) on the 24-hour (NTx 24) and 2-hour morning (NTx 2) diuresis (from 6 to 8 a.m.). Objective: to find a reply to the question 1. Is there a statistically significant correlation between values BTx in the 24-hour and 2-hour diuresis in patients with osteoporosis? 2. Is there a statistically significant difference in the level of NTx in the 24-hour and 2-hour diuresis in the same patient? 3. Is the 2-hour diuresis more accurate for the assessment of levels of NTx in patients with osteoporosis than the hitherto used collection of the first or second urine sample collected at any time in the morning? Statistical analysis: for testing of the normality of distribution in each group the authors used d’Agostin’s test. The one way relationship of a random variable y (NTx 2) on the independent variable x (NTx 24) was expressed by linear regression. Results: Between values NTx (axis x) and NTx 2 and NTx 1 (axis y) a significant (p
Key words:
NTx, osteoresorption, diuresis, osteoporosis
Labels
Dermatology & STDs Paediatric rheumatology RheumatologyArticle was published in
Czech Rheumatology
1998 Issue 4
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