A study of 7,800 teens aged 16 to 18 years in Norway ties stringent COVID-19 public health protocols and quarantine with mental distress, particularly among 16-year-olds and those with less-educated parents and a lower genetic susceptibility to depression.
Led by researchers from the Norwegian Institute of Public Health, the study collected data on 7,787 teens from the Norwegian Mother, Father, and Child Cohort Study (MoBa), national health registries, and a national lockdown-stringency index from April 2020 to February 2021.
MoBa recruited pregnant women from 1999 to 2008, consenting to provide umbilical-cord blood samples for genotyping at delivery. The team measured mental distress with the Hopkins Symptom Checklist in six COVID-19 surveys. A total of 57% of the adolescents were girls, and 22% had experienced quarantine.
On March 12, 2020, the Norwegian government closed schools and issued stay-at-home mandates, ordered 14-day quarantines for those who had traveled abroad or had contact with infected people, and initiated travel restrictions to reduce the spread of SARS-CoV-2.
"Adolescence is a critical developmental phase when mental health disorders, such as anxiety and depression, often emerge," the study authors wrote. "Stringent public health measures and quarantine mandates during the COVID-19 pandemic could threaten adolescent mental health."
Targeted teen support needed in future crises
Strict COVID-19 public health measures, recent quarantine, and frequent quarantines were linked to greater mental distress, and the association wasn't changed by sex, age, prepandemic anxiety or depression, or genetic liability for mental illness in general. The effects were especially apparent among 16-year-olds, those with parents with lower educational attainment, and those with lower genetic susceptibility to depression.
Adolescents who experienced increased mental distress during the COVID-19 pandemic may be at risk of continued mental health problems and in need of ongoing support.
"These findings emphasize the need for targeted support strategies to better protect adolescent well-being during future crises," the researchers wrote. "For instance, considering the varying risks and impacts across different people, quarantine measures might be adjusted so that they are not mandatory for vulnerable groups."
"Adolescents who experienced increased mental distress during the COVID-19 pandemic may be at risk of continued mental health problems and in need of ongoing support," they added.