percent forced vital capacity was the outcome parameter with data analysis using a mixed-model repeated-measures anova and paired t tests.
用力肺活量作为分析的参数使用混合的模型反复使用anova和配对t检验进行统计学比较。
the researchers used forced expiratory volume in 1 second (fev1) and forced vital capacity (fvc) as a percentage of predicted value (fvcpp) as indicators of lung function.
objective. to compare the rate of respiratory decline using percent normal forced vital capacity (%fvc) measurements before and after posterior spinal fusion.