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ObjectiveTo analyze the characteristics and changing trend of injury cause of mortality of residents in Qingpu District from 2002 to 2020， and to provide scientific reference for formulating regional prevention and control measures.MethodsThe injury mortality data of the registered residents in Qingpu District from 2002 to 2020 were collected. The indicators such as crude mortality rate， standardized mortality rate， and the ranking of causes of death were calculated.ResultsFrom 2002 to 2020， the average annual crude mortality rate was 50.27/ 100 000， the age-standardized mortality rate based on the world standard population（ASRW） was 30.08/100 000， and the age-standardized mortality rate based on the 2010 Chinese census（ASMRC） was 35.58/100 000. The average annual crude mortality rate of males was higher than that of females ［Z=54.402， Mantel-Hanszel χ2=1 742.509， P

ObjectiveTo establish the Shanghai twin birth cohort （STBC） and analyze the effects of genetic factors， shared environment， and non-shared environment interactions on birth health and growth and development of newborns.MethodsBased on the population-wide birth cohort in Shanghai， a comprehensive survey was conducted on the families with double and multiple babies born after January 1， 2015 to collect information on birth health， growth and development， and the family environment of the babies.ResultsBy December 31， 2021， a total of 7 195 pairs （14 405 cases） of twins were successfully included in the STBC survey. The average birth length of twins was 47.2 cm and average birth weight was 2 465.3 g. Heterozygous twins accounted for 69.05% and preterm babies accounted for 57.07%. The average age of the mothers of twins was 31.82 years， and the average age of the fathers was 33.87 years， with more than 80% of the parents having a college degree or above. 44.50% of the mothers used assisted reproductive technologies， 7.40% had illnesses during pregnancy， and 15.90% were exposed to passive smoking during pregnancy. During the survey period， the average monthly increase in the length of the twin infants was 2.09 cm， and the average monthly weight gain was 0.53 kg.ConclusionThe incidence of adverse outcomes such as maternal cesarean section rate， preterm birth， and low birth weight is higher in the twin birth population. Information on birth health as well as growth and development in childhood and adolescence in the twin birth population is collected based on STBC， which can provide a solid data foundation for studying children’s chronic non-communicable diseases， psychological and behavioral disorders and other complex health problems caused by the combined effects of genetics and the environment.

The arrival of the intelligent era makes intelligent music education a reality, which is a product of the combination of intelligent technology and music education. The article starts with the intelligent transformation of music education, analyzes the talent cultivation mode of music education, and establishes the intelligent classroom teaching mode of music education through the use of intelligent technology. Combined with the data of students’ online music learning behavior, a personalized music learning path model is established, and a nonlinear factor is introduced to optimize the SBPSO intelligent algorithm in order to realize the accurate recommendation of a personalized learning path. A DFN model for the automatic generation of music accompaniment was established based on the Flow model, and simulation analysis and teaching experiments were carried out to analyze the effectiveness of the above methods in music-intelligent classroom teaching. The convergence value of the NFSBPSO algorithm was in the range of 0.026~0.043, and the discrepancy between the mean value of the note length of the accompaniment generated by the DFN model and that of real data was only 0.35% and the total average score of the generated accompaniment was 7.0%. Accompaniment had an overall mean score of 7.23. The observation group scored 83.64 on their final music course grade, which was 11.46 points more than the control group’s average grade. Combining music education with intelligent algorithms can achieve intelligent transformations in music education and improve the quality of talent cultivation.

ObjectiveTo determine the epidemiological characteristics of a cluster of SARS-CoV-2 Omicron variant at a construction site and provide evidence for further COVID-19 prevention and control.MethodsDemographic data of all COVID-19 cases at a construction site in Qingpu District， Shanghai， and basic information of the construction site were retrospectively collected through filed investigation. Descriptive epidemiology was used for the analysis. Basic reproduction number （R0） and time-dependent reproduction number （Rt） were calculated using R program.ResultsDuring April 12 and May 8， 2022， a total of 314 cases were reported at the construction site， with an attack rate of 60.62%. The attack rate significantly differed between workers and managers （χ2=10.868， P

ObjectiveTo learn about the fertility level and gender changes of household registration in Qingpu District from 2012 to 2020， and to provide a theoretical basis for the population development planning.MethodsBirth information of newborns with household registration in Qingpu District from 2012 to 2020 was collected through the Shanghai birth medical certificate information system and the public security department. Access 2003 software was used to combine the data，and Excel 2010 software for statistical analysis.ResultsThere were 28 284 live births in household registered in Qingpu District from 2012 to 2020. The crude birth rate was 6.57‰，and the total fertility rate was 30.29‰. Comprehensive fertility rate was 1.12. The sex ratio at birth was 105.49.ConclusionThere is a low fertility level in Qingpu District. The proportion of the second child increased year by year but decreased after 2017. Negative population growth is intensified year by year.