Shingo Noi, Akiko Shikano, Natsuko Imai, Fumie Tamura, Ryo Tanaka, Tetsuhiro Kidokoro, Mari Yoshinaga
The Changes in Visual Acuity Values of Japanese School Children during the COVID-19 Pandemic
Children (Basel, Switzerland)
prevalence youth nicotine vaping increased heightening concerns around negative health effects study aimed compare selfreported respiratory symptoms among youth vaping behaviours participants n 39214 aged 1619 2020 2021 international tobacco control policy evaluation project itc youth tobacco vaping surveys canada england us weighted multivariable logistic regression assessed associations reporting five respiratory symptoms past week shortness breath wheezing chest pain phlegm cough past 30day smoking andor vaping lifetimecurrent vaping among past30day vapers n 4644 assessed associations symptoms vaping frequency use nicotine salts usual flavour device types overall 278 reported experiencing five respiratory symptoms compared youth vaped smoked similar odds symptoms adjusted odds ratio 95 confidence interval ci 097 085110 smoked vaped higher odds 126 112142 done neither lower odds 067 061072 compared never vaped past use experimentation current regular occasional use associated higher odds reporting usually using nicotine salts associated higher odds symptoms 143 122168 nonsalt often uncertain compared tobacco flavour including menthol mentholmint sweets flavours associated similar odds fruit 144 107193 multiple 176 130239 214 145316 flavours higher odds device types associated similar odds among youth vaping associated increased reporting pastweek respiratory symptoms among vaped flavour types potentially nicotine salts associated respiratory symptoms