1 Subjects: “...multivariate statistical analysis...”

2 Subjects: “...Epidemiology and Medical statistics / bicssc...”

3 Subjects: “...influencing factors...”

4 Subjects: “...regression analysis...”

5 Subjects: “...statistical analysis...”

6 Subjects: “...data analysis...”

7 “... synthesis reported that there were no statistically significant differences in hospitalization days between...”

8 “... synthesis reported that there were no statistically significant differences in hospitalization days between...”