Construction of Nomogram prediction model of myopia risk and lifestyle among primary school students in Tianjin City
Objective To explore the relationship between lifestyle and myopia and construct Nomogram model to predict myopi-a risk among primary school students in Tianjin,so as to provide a scientific basis for precision myopia prevention and control.Methods From April to July of 2022,a census method was used to conduct vision testing and lifestyle-related questionnaires a-mong 373 180 primary school students in 15 districts of Tianjin.The relationship between lifestyle and myopia was analyzed by the multivariate Logistic regression,and a nomogram prediction model was constructed to predict myopia risk.Results The detection rate of myopia among primary school students in Tianjin was 37.6%.The results of the multivariate Logistic regression showed that daily outdoor activity time of 1-2 h(OR=0.94)and>2 h(OR=0.84),time of using daily electronic devices of>2 h(OR=1.03),daily paper materials reading and writing time of 1-2 h(OR=1.02)and>2 h(OR=1.09),weekly fresh vegetable intake of 2-6 times(OR=0.93)and ≥7 times(OR=0.88)were statistically correlated with myopia(P<0.0l).The Nomogram prediction model showed that the factors associated with myopia were grade,family history of myopia,gender,daily outdoor activity time,weekly fre-quency of fresh vegetable intake,daily paper materials reading and writing time,and time of using daily electronic devices time.Conclusions The lifestyle of primary school students in Tianjin is associated with myopia.The constructed nomogram model could provide a scientific basis for identifying key intervention populations for myopia prevention and taking targeted prevention and control measures.
Life styleMyopiaNomogramsRegression analysisStudents