ABSTRACT
Objective The exam quality of ‘Probability’ course for foreign medical undergraduates was analyzed,aiming at providing some reference for the improvement of the student evalua-tion system and course quality.Methods The ‘Probability’ course exam scores of 167 foreign un-dergraduates of 2014 batch were collected,the students were divided into two classes according to their entrance date,the former part class A consisted of 90 students,the latter part class B consisted of 77 students.The reliability of the test paper was judged according to Cronbach's α,Hotelling's T2 and Pearson correlation coefficient.The Spearman correlation analysis was adopted to evaluate the cor-relation between the question items.For the two classes,the impact of the entrance time on the test scores was explored on the basis of Student's t-test of question item scores and the total scores.Results The average score of the course exam was 82.587 points with the standard deviation of 13.520,Kol-mogorov-Smimov statistic was 1.627 (P=0.010),the exam scores could not follow normal distribution.The Cronbach's α for the exam paper was 0.808,the standardized Cronbach's α was 0.815.The Spearman correlation coefficients between the five question items were all with statistical significance and varied from 0.315 to 0.657.As the students were divided into two classes according to their entrance date,for the ‘Probability’ section scores of the latter batch students were less than the scores of the former batch,with the difference 4.017 points,the same situation was also found that all the five items in the ‘Probability’ section.Conclusions The entrance time for the foreign medical freshman has an impact on their exam scores,suggesting that more attention should be paid to those students.
ABSTRACT
Objective To determine the relationships between maternal serum copper,amniotic copper,lysyl oxidase (LOX) and collagen Ⅲ in pregnant women with premature rupture of membranes (PROM) and without PROM.Methods One hundred women with PROM were enrolled in this study,and divided into 37-42 weeks,34-36~ +6 weeks and 28-33~ +6 weeks according to gestational age. One hundred non-PROM pregnancies matching the same gestational ages were recruited as control group. Copper of maternal serum and amnion in two groups were compared by FAAS method. Amniotic LOX was analyzed by fluorometry. Amniotic collagen Ⅲ was detected by immunohistochemical method and computer image analysis system(absorbance,A). Linear correlation analysis was used to explore the relationships between maternal serum copper,amniotic copper,LOX and collagen Ⅲ. Results (1)For 37-42 weeks pregnant women,serum copper was correlated positively with amniotic copper in two groups, r= 0.82(P0.05),but amniotic LOX and collagen Ⅲ decreased significantly compared with controls, being [(0.53?0.10)?g/g vs (0.75?0.10)?g/g,P