1.Characteristics and trends of induced abortions: a retrospective study in Xiamen from 2014 to 2018
Zhenyu LUO ; Wenrong WANG ; Dongning CHAI ; Ruide SU ; Lingling ZHUANG ; Yupin SHEN ; Meiying HU ; Hailan SHEN ; Yingyin CAI
Chinese Journal of Reproduction and Contraception 2020;40(6):490-495
Objective:To investigate the characteristics and trends of women who underwent induced abortion in recent years, and to provide more evidences to decrease induced abortion rate.Methods:A retrospective study was conducted on women who underwent induced abortions in the Family Planning Department of Women and Children’s Hospital of Xiamen University from January 2014 to December 2018.Results:Of the 28 529 women with induced abortion, the age was (28.77±5.78) years old. Women aged 25-34 years accounted for 58.1%, 67.0% of women were married, 62.5% had a history of delivery, 24.0% were in their first pregnancies, 30.3% had induced abortion for twice, 21.5% were for three times and more (the maximum frequency of induced abortion was 14). About 16.1% induced abortion women had a history of cesarean section,and rate showed an increasing trend in the five years (16.2%, 15.0%, 15.9%, 16.6%, 16.9%), but the difference was not statistically significant ( P=0.054). From 2014 to 2018, the age of induced abortion women [(28.05±5.69) years, (28.47±5.62) years, (28.70±5.80) years, (29.03±5.81) years, (29.59±5.82) years, P<0.001] and the percentages of married women (63.2%, 66.8%, 66.9%, 67.2%, 70.9%), women with two or more children (11.8%, 15.4%, 20.2%, 25.2%, 32.2%) and women undergoing at least a second abortion over 35 years old (21.7%, 22.1%, 23.4%, 26.7%, 29.9%) increased every year (all P<0.001). However, among the induced abortion women, the percentages of unmarried women (36.8%, 33.2%, 33.1%, 32.8%, 29.1%), women who haven’t bear children (42.9%, 38.4%, 37.8%, 36.3%, 32.4%), women with the first pregnancy (26.2%, 23.8%, 24.7%, 23.4%, 21.8%) and women under 24 years old (29.3%, 25.3%, 24.7%, 24.1%, 21.5%) decreased during the five years period (all P<0.001). Conclusion:The incidence rate of induced abortion among married women with children is the highest, so special attention should be paid to postpartum women in family planning services, and it is urgent to launch postpartum contraceptive services and promote long-term reversible contraceptive measures.
2.Characteristics and trends of induced abortions: a retrospective study in Xiamen from 2014 to 2018
Zhenyu LUO ; Wenrong WANG ; Dongning CHAI ; Ruide SU ; Lingling ZHUANG ; Yupin SHEN ; Meiying HU ; Hailan SHEN ; Yingyin CAI
Chinese Journal of Reproduction and Contraception 2020;40(6):490-495
Objective:To investigate the characteristics and trends of women who underwent induced abortion in recent years, and to provide more evidences to decrease induced abortion rate.Methods:A retrospective study was conducted on women who underwent induced abortions in the Family Planning Department of Women and Children’s Hospital of Xiamen University from January 2014 to December 2018.Results:Of the 28 529 women with induced abortion, the age was (28.77±5.78) years old. Women aged 25-34 years accounted for 58.1%, 67.0% of women were married, 62.5% had a history of delivery, 24.0% were in their first pregnancies, 30.3% had induced abortion for twice, 21.5% were for three times and more (the maximum frequency of induced abortion was 14). About 16.1% induced abortion women had a history of cesarean section,and rate showed an increasing trend in the five years (16.2%, 15.0%, 15.9%, 16.6%, 16.9%), but the difference was not statistically significant ( P=0.054). From 2014 to 2018, the age of induced abortion women [(28.05±5.69) years, (28.47±5.62) years, (28.70±5.80) years, (29.03±5.81) years, (29.59±5.82) years, P<0.001] and the percentages of married women (63.2%, 66.8%, 66.9%, 67.2%, 70.9%), women with two or more children (11.8%, 15.4%, 20.2%, 25.2%, 32.2%) and women undergoing at least a second abortion over 35 years old (21.7%, 22.1%, 23.4%, 26.7%, 29.9%) increased every year (all P<0.001). However, among the induced abortion women, the percentages of unmarried women (36.8%, 33.2%, 33.1%, 32.8%, 29.1%), women who haven’t bear children (42.9%, 38.4%, 37.8%, 36.3%, 32.4%), women with the first pregnancy (26.2%, 23.8%, 24.7%, 23.4%, 21.8%) and women under 24 years old (29.3%, 25.3%, 24.7%, 24.1%, 21.5%) decreased during the five years period (all P<0.001). Conclusion:The incidence rate of induced abortion among married women with children is the highest, so special attention should be paid to postpartum women in family planning services, and it is urgent to launch postpartum contraceptive services and promote long-term reversible contraceptive measures.
3.PCR-based sequencing for detection and genotyping of human papillomavirus in 325 cervical cell specimens from Beijing area.
Yupin CAI ; Ruifen ZHANG ; Yuan LI ; Xiaoyu XIA ; Yang XIANG ; Baoli ZHU ; Yi YANG
Chinese Journal of Biotechnology 2011;27(10):1482-1489
To evaluate PCR-sequencing for clinical detection of human papillomavirus (HPV) genotypes in cervical cell specimens, we applied PCR-sequencing to HPV detection and genotyping by general primer PGMY09/11, which targets the HPV most conserved L1 gene. Samples with multiple infections were subjected to HPV type-specific PCR. Among the 325 cervical samples, 228 were HPV positive, of which 66 showed multiple infections. In all, 27 different HPV genotypes were identified, with HPV 16 being the most prevalent, followed by HPV 58 and 52. The prevalence of high-risk HPV infection increased with the severity of cervical lesions (P < 0.05), whereas the proportion of multiple infections declined significantly from LSIL to SCC (P < 0.05). Both rates of overall and high-risk HPV infection were the highest in 21-30 age groups. There was substantial agreement between the HC2 and PCR-sequencing assay for detection of high-risk HPV (kappa = 0.675). PCR-sequencing was effective in HPV detection and genotyping, and it could be potentially applied to large scale HPV screening.
Adult
;
Aged
;
Cervix Uteri
;
pathology
;
virology
;
China
;
epidemiology
;
Female
;
Genotype
;
Human papillomavirus 16
;
isolation & purification
;
Humans
;
Middle Aged
;
Papillomaviridae
;
genetics
;
isolation & purification
;
Papillomavirus Infections
;
epidemiology
;
virology
;
Polymerase Chain Reaction
;
methods
;
Vaginal Smears
;
Young Adult
4.Mutagenicity of Enphorbia lunulata decoction in vitro
Jianling JIN ; Hui ZHANG ; Bo LIU ; Yupin CAI ; Peiji GAO
Chinese Pharmacological Bulletin 2010;26(2):263-266
Aim To assay the mutagenicity of Enphorbia lunulata(EL) decoction and to modify the Ames test for evaluation the mutagenicity of herbal medicine samples.Method The mutagenicity of EL decoction was assayed by standard Ames test; the teratogenicity was done by mammalian bone marrow chromosomal aberration test. In modified Ames test system,the influence of histidine EL decoction was excluded by additional negative control, in which the test media was supplied with histidine (histidine amount equaled to the histidine in different concentration of EL decoction).Result The mutagenicity of EL decoction was positive in the standard Ames test. The teratogenicity of EL decoction was negative in mammalian bone marrow chromosomal aberration test. By the modified Ames tests,the mutagenicity of EL decoction was negative.Conclusion The standard Ames test is not suitable for evaluating the mutagenicity of EL decoction, but the modified Ames test is. The mutagenicity in vitro and the teratogenicity in vivo of EL decoction are all negative.

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