Multiple health complaints more than once a week VOLUME 1 A FOCUS ON ADOLESCENT MENTAL HEALTH AND WELL-BEING IN EUROPE, CENTRAL ASIA AND CANADA HEALTH BEHAVIOUR IN SCHOOL-AGED CHILDREN (HBSC) INTERNATIONAL REPORT FROM THE 2021/2022 SURVEY 11-year-olds 15-year-olds 31% of boys 42% of girls 36% of boys 66% of girls
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