Normally distributed data is represented by a mean ± standard deviation and number , and skewness distribution data were represented by a median and number . The independent samples t-test and non-parametric test were used to compare measurement data fitting normal and skewed distribution respectively. Additionally, the chi-squared test was used to compare categorical variables.
We observed significant differences in total bilirubin , indirect bilirubin , BNP, platelet , and lymphocyte levels between COPD-PH and COPD-NPH patients living at LA . COPD-PH patients had higher bilirubin and BNP levels than COPD-NPH patients. Conversely, the PLT and LY levels in COPD-PH patients were lower than those in COPD-NPH patients.
Moreover, we observed significant differences in TB, IB, BNP, serum albumin , arterial partial pressure of oxygen and arterial partial pressure of carbon dioxide , arterial oxygen saturation (SaO