Estimated prevalence and trends in smoking among adolescents in South Korea, 2005-2021: a nationwide serial study.

BACKGROUND: Although smoking is classified as a risk factor for severe COVID-19 outcomes, there is a scarcity of studies on prevalence of smoking during the COVID-19 pandemic. Thus, this study aims to analyze the trends of prevalence of smoking in adolescents over the COVID-19 pandemic period. METHODS: The present study used data from middle to high school adolescents between 2005 and 2021 who participated in the Korea Youth Risk Behavior Web-based Survey (KYRBS). We evaluated the smoking prevalence (ever or daily) by year groups and estimated the slope in smoking prevalence before and during the pandemic. RESULTS: A total of 1,137,823 adolescents participated in the study [mean age, 15.04 years [95% confidence interval (CI) 15.03-15.06]; and male, 52.4% (95% CI 51.7-53.1)]. The prevalence of ever smokers was 27.7% (95% CI 27.3-28.1) between 2005 and 2008 but decreased to 9.8% (95% CI 9.3-10.3) in 2021. A consistent trend was found in daily smokers, as the estimates decreased from 5.4% (95% CI 5.2-5.6) between 2005 and 2008 to 2.3% (95% CI 2.1-2.5) in 2021. However, the downward slope in the overall prevalence of ever smokers and daily smokers became less pronounced in the COVID-19 pandemic period than in the pre-pandemic period. In the subgroup with substance use, the decreasing slope in daily smokers was significantly more pronounced during the pandemic than during the pre-pandemic period. CONCLUSIONS: The proportion of ever smokers and daily smokers showed a less pronounced decreasing trend during the pandemic. The findings of our study provide an overall understanding of the pandemic's impact on smoking prevalence in adolescents. Supplementary file2 (MP4 64897 KB).

Qualitative analysis of the impact of the SARS-CoV-2 pandemic response on paediatric health services in North of Scotland and North of England.

OBJECTIVE: To capture the extent and impact of changes in the delivery of child health services in the UK, resulting from the SARS-CoV-2 pandemic response, from the perspectives of a range of child healthcare providers. SETTING: National Health Service commissioned/delivered healthcare services in two regional settings in the UK: North of Scotland (NOS) and North East and North Cumbria (NENC) in England. PARTICIPANTS: Purposive sample of 39 child healthcare professionals including paediatricians, community/specialist nurses, allied health professionals and mental health professionals, from across the two regions (22 in NOS, 17 in NENC). METHODS: Semistructured qualitative interviews conducted via telephone between June and October 2020, fully transcribed and analysed in NVivo V.11 using thematic analysis. RESULTS: Extensive changes across a range of paediatric services were rapidly implemented to support the pandemic response and ongoing healthcare delivery. New ways of working emerged, principally to control the spread of the virus. Keeping users and their families out of hospital was an urgent driver for change. The changes had considerable impact on the health and well-being of staff with many experiencing radical changes to their working conditions and roles. However, there were some positive changes noted: some practitioners felt empowered and listened to by decision makers; some of the usual bureaucratic barriers to change were lifted; staff saw improved collaboration and joint working across the system; and some new ways of working were seen to be more efficient. Interviewees perceived the implications for children and their families to be profound, particularly with regard to self-care, relationships with practitioners and timely access to services. CONCLUSIONS: Despite the challenges experienced by staff, the pandemic provided an opportunity for positive, lasting change. It is vital to capitalise on this opportunity to benefit patient outcomes and to 'build back' services in a more sustainable way.

Indirect effects of the COVID-19 pandemic on paediatric healthcare use and severe disease: a retrospective national cohort study.

OBJECTIVES: To determine the indirect consequences of the COVID-19 pandemic on paediatric healthcare utilisation and severe disease at a national level following lockdown on 23 March 2020. DESIGN: National retrospective cohort study. SETTING: Emergency childhood primary and secondary care providers across Scotland; two national paediatric intensive care units (PICUs); statutory death records. PARTICIPANTS: 273 455 unscheduled primary care attendances; 462 437 emergency department attendances; 54 076 emergency hospital admissions; 413 PICU unplanned emergency admissions requiring invasive mechanical ventilation; and 415 deaths during the lockdown study period and equivalent dates in previous years. MAIN OUTCOME MEASURES: Rates of emergency care consultations, attendances and admissions; clinical severity scores on presentation to PICU; rates and causes of childhood death. For all data sets, rates during the lockdown period were compared with mean or aggregated rates for the equivalent dates in 2016-2019. RESULTS: The rates of emergency presentations to primary and secondary care fell during lockdown in comparison to previous years. Emergency PICU admissions for children requiring invasive mechanical ventilation also fell as a proportion of cases for the entire population, with an OR of 0.52 for likelihood of admission during lockdown (95% CI 0.37 to 0.73), compared with the equivalent period in previous years. Clinical severity scores did not suggest children were presenting with more advanced disease. The greatest reduction in PICU admissions was for diseases of the respiratory system; those for injury, poisoning or other external causes were equivalent to previous years. Mortality during lockdown did not change significantly compared with 2016-2019. CONCLUSIONS: National lockdown led to a reduction in paediatric emergency care utilisation, without associated evidence of severe harm.