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Purpose: Pain symptoms are common in childhood. They often lead to functional impairment and co-occur with psychiatric difficulties. Although children's lives have undergone enormous changes in recent decades, long-term data on changes in pain symptoms, and in comorbid psychiatric difficulties, is lacking. This knowledge is crucial, as co-occurring psychiatric symptoms are significant predictors of long-term outcome for children who suffer from pain. The main purpose of the present study was to explore secular changes in comorbid pain and psychiatric symptoms., Methods: Four population-based, cross-sectional surveys of 8-9-year-old children were conducted in Southwest Finland in 1989, 1999, 2005, and 2013. Identical methodologies and questionnaire-based measures were used each study year. Participation ranged from 891 to 986 over the study period. The children were asked about the frequency of headache, abdominal pain, and other pains. Children, their parents, and teachers provided information on the child's psychiatric difficulties, including internalizing and externalizing symptoms., Results: The cumulative odds ratios and 95% confidence intervals for the overall prevalence of pain symptoms increased among both genders from 1989 to 2013 and ranged from 1.4 (1.03-1.8) for other pains to 2.4 (1.7-3.3) for abdominal pain. Comorbid internalizing symptoms increased among girls with odd ratios and 95% CIs of 1.8 (1.03-3.1) for children with any kind of pain, and 3.0 (1.4-6.2) for children with headache. No changes were found among boys., Conclusion: Overall pain symptoms doubled in both genders, but the most novel finding was that comorbid emotional difficulties tripled among girls who reported headaches. Further research is needed to confirm, and explain, these findings., (© 2022. The Author(s).)

This study investigated associations between pain symptoms in mid-childhood and severe suicidality in adolescence and early adulthood. Severe suicidality was defined as completed suicide or suicidal attempt requiring hospital admission. In a nationwide prospective population-based study (n = 6,017), parents and children were asked about the child's headache and abdominal pain at age eight. The outcome was register-based data on suicide or suicidal attempt requiring hospital treatment by age 24. Family composition, parental educational level, and the child's psychiatric symptoms reported by the child, parents and teacher at baseline were included as covariates in statistical analyses. Boys' abdominal pain reported by the parents was associated with later severe suicidality after adjusting for family composition, parental educational level, and childhood psychiatric symptoms at baseline. In addition, the association between boys' own report of headache and later severe suicidality reached borderline significance in unadjusted analysis. Girls' pain symptoms did not predict later severe suicidality.

The aims of this study were to examine the prevalence, co-occurrence, and psychosocial determinants of self-perceived headache, abdominal pain, and sleep problems among adolescents. The adolescents from two cities in Finland (n = 2,215, 90.9% of the target population) attending 7th and 9th grade (age range 13-18 years) participated in the cross-sectional survey inquiring about frequency of headache, abdominal pain, sleep problems, and psychosocial difficulties. The 6-month prevalence of weekly headache was 13%, abdominal pain 6%, and sleep problems 27%. All three symptoms were strongly associated with each other. Of the adolescents suffering from one symptom, 32% reported one co-occurring symptom and 17% two co-occurring symptoms. In the multivariate analysis, female gender, experience of psychological difficulties, emotional symptoms, smoking, victimization, and feeling not cared about by teachers were independently associated with all the individual symptoms, as well as an increasing number of symptoms. Sleep problems were associated with older age and peer and alcohol problems. Abdominal pain was associated with conduct problems, and both headache and abdominal pain were linked with immigration background. An increasing number of symptoms was associated with older age, having a chronic illness, and conduct and alcohol problems. Adolescents' headache, abdominal pain and sleep problems were common and often co-occurred. An increasing frequency of each symptom and number of symptoms were associated with psychosocial factors in a similar way. Screening for psychiatric symptoms, substance use, victimization and difficulties with teachers should be included in the assessment of adolescents who suffer from recurrent headache, abdominal pain or sleep problems.