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Statistical analysis

ST Shengyu Tan
XL Xianling Liu
YX Yan Xu
LL Lu Luo
SZ Shenghua Zhou
YG Yawen Gao
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SPSS13.0 software was utilized in this study. Quantitative data fitting a normal distribution pattern were presented as mean ± SD. The data which was not normally distributed was presented as the median and range. The data not fitting a normal distribution were subjected to natural logarithm operation or geometric mean calculation before statistical analysis. The t test and variance analysis were used to compare data means, while the χ 2 test was utilized for ratio comparison. The HDL-C, ApoM, and ApoA5 levels in controls and patients with different severity of OSAHS were analyzed by Kruskal-Wallis test. The multivariate stepwise regression analysis was adapted for multiple factors’ analysis, with P < 0.05 considered as statistically significant.

Copyright and License information: The Author(s) ©2016
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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