The associated factors of earphone usage on hearing impairment among students aged 14 to 28 / 中国学校卫生

Objective@#To investigate the relationship between the use of earphone and hearing impairment and its influencing factors among students aged 14-28, so as to provide a reference for appropriate earphone usage and hearing impairment prevention.@*Methods@#A cross sectional survey was conducted through the questionnaire star platform, and 983 students aged 14 to 28 were recruited across China by snowball sampling during April 3 to May 1, 2022. The χ 2 test was used to identify indicators affecting hearing, the Logistic regression model was used to further selection.@*Results@#There were 366 students with hearing impairment, accounting for 37.23%. Univariate analysis showed significant differences in hearing impairment by gender, earphone usage duration and volume, wearing during sleep, and replacement frequency ( χ 2=6.03, 6.86, 14.87, 12.22, 11.15, P <0.05). The Logistic regression model analysis showed that girls ( OR=1.43, 95%CI =1.10-1.88), maximum earphone volume ( OR=3.08, 95%CI = 1.56- 6.08), earphone usage for >1.5-3 h each time ( OR=1.44, 95%CI =1.04-1.99), sleep with headphone ( OR= 1.53 , 95%CI = 1.11- 2.11) were positively associated with hearing impairment ( P <0.05), earphone replacement every 4-<6 months ( OR= 0.38, 95%CI =0.17-0.86) and earphone replacement every six months or longer ( OR=0.39, 95%CI =0.18-0.85) were negatively associated with hearing impairment ( P < 0.05 ).@*Conclusion@#Students aged 14 to 28 earphone usage shows adverse impact on hearing. When using earphone, it is recommended to limit time spent on earphone usage, low the volume of earphone, avoid sleeping with earphone and replace earphone frequently.

Research progress on the correlation between vasomotor symptoms of menopause and cardiovascular disease / 中华老年医学杂志

Vasomotor symptoms(VMS)are among the typical manifestations in perimenopausal and menopausal women, with a high incidence and prolonged duration, and have long been afflicting many menopausal women.Cardiovascular disease has become one of the main causes of death in postmenopausal women.Previous studies suggest that postmenopausal VMS are related to the occurrence of cardiovascular disease in postmenopausal women, but the view is controversial.There have been many studies on the association of VMS in menopausal women with the risk of cardiovascular disease, cardiovascular disease risk factors and subclinical indicators, and the results suggest that menopausal VMS may predict the occurrence of cardiovascular disease after menopause.