From recent collection of 40 male adult cadavers from Chungking, the authors caIculated the coefficient of correlation between the average lengths of long bones of both sides and the stature measured from the cadavers. The figures range from 0.719～0.849, which denote a rather high degree of correlation. Hence, 10 regression formulae were computed. After a thorough analysis of the equations, it indicates that the relationship between stature and long bones of the lower limb reveals a higher coefficient of correlation and a lower standard error of estimation than that from the upper limb. Moreover, the reconstruction of stature from the sum of the lengths of femur and tibia (or fibula) appears still more reliable than that from the femur alone. The regression formulae obtained had been compared with the only data thus far found on the North China sample (Stevenson, 1929),it exhibits that all regression lines of both sources parallel with each other (Chungking lines being placed a little bit lower), with the exception of the two humerus lines which intersect. Therefore, whether regression formulae computed from this paper can be expected to give an approximation to reality in different districts of China or not demands further checking over with figures derived from the stature estimate made in different localities by the same method.

Objective To compare the efficacy of gradient and swim-up semen preparation techniques on pregnancy rates in couples undergoing intrauterine insemination (IUI) cycles with human menopausal gonadotropin (HMG) stimulation. Methods Five hundred and seventy one cycles were devided into the swim up or the gradient technique groups for sperm preperation. The clinical pregnancy rates per cycle were evaluated. Results The clinical pregnancy rates per cycle were significantly higher in the gradient group (17.8%) than that in the swim up group (11.4%)(P < 0.05). In the subgroup of unexplained subfertile couples, the gradient group also revealed significantly higher clinical pregnancy rates per cycle (33.7%) than that in the swim up group (20.3%)(P<0.05). In couples with mild male factor subfertility, the gradient group also revealed significantly higher clinical pregnancy rates per cycle (11.6%) than that in the swim up group (7.6%)(P < 0.05). Conclusion The gradient technique significantly improves clinical outcome in IUI cycles of unexplained subfertile and male subfertile couples.

Objective To explore the efficiency and the clinical application value of non-invasive prenatal genetic testing for fetal chromosomal aneuploidy.Methods A total of 1 865 pregnant women treated in Guangdong Women and Children Hospital from January 201 1 to January 2013 were selected.Inclusion criteria:advanced age,prenatal screening for high risk,and fetal abnormality indicated by color ultrasonography,agreeing with non-invasive prenatal genetic testing.After non-invasive prenatal genetic testing, the pregnant women with positive result underwent cell culture and chromosomal karyotyping.Following the situations after deliv-ery were designed as the final criteria for definite diagnosis of fetal chromosomal aneuploidy.Results A total of 1 865 pregnant women underwent non-invasive prenatal genetic testing,of which 21 pregnant women were found with positive result,including 14 pregnant women with trisomy 21,5 pregnant women with trisomy 18,2 pregnant women with trisomy 13.The results of chromo-somal karyotyping after amniocentesis or umbilical cord blood puncture were designed as golden standard.Among the women with trisomy 21,one woman refused the prenatal diagnosis,self induced labor and could not be confirmed karyotype.No false positive case was found among the women with trisomy 18 and 13.No missed diagnosis was found among the pregnant women with negative result during follow-up after delivery.Through statistical analysis of non-invasive prenatal fetal genetic testing,the sensitivity for the trisomy 21 was 100%,and the accuracy was 92.9%.The sensitivity and accuracy for the trisomy 18 and 13 were 100%.Conclu-sion Non-invasive prenatal genetic testing can improve the diagnostic efficacy before delivery,reduce the birth of ill infants,and it is a quick,safe,easy-accepted and reliable prenatal diagnostic method,which is worthy to be popularized and an inexorable trend of development in the future.

In recent years, the aging process of China′s population has accelerated, and the number of disabled people has skyrocketed. It is urgent to improve the health benefits of family bed services. The author found that there was a lack of synergy in policies, service subjects and content, and service concepts in the practical process of family bed services in various regions of China, which limited the effectiveness of services. The author put forward the theoretical framework of integrated family bed service, combined the service practice experience of six cities, namely Guangzhou, Shanghai, Beijing, Shenzhen, Nanjing and Hohhot, and put forward specific suggestions on building integrated family bed service. Among them, department collaboration could be the source power of system integration, institutional linkage could improve service continuity, service concept and incentive mechanism could promote each other, and modern technology could promote functional integration.