Hence , continuous and everyday monitoring of behavioral aspects in affective disorders could be a promising supplementary objective measure for estimating depressive mood symptoms .
BACKGROUND Several studies have recently reported on the correlation between objective behavioral features collected via mobile and wearable devices and depressive mood symptoms in patients with affective disorders ( unipolar and bipolar disorders ) .
However , individual studies have reported on different and sometimes contradicting results , and no quantitative systematic review of the correlation between objective behavioral features and depressive mood symptoms has been published .
OBJECTIVE The objectives of this systematic review were to ( 1 ) provide an overview of the correlations between objective behavioral features and depressive mood symptoms reported in the literature and ( 2 ) investigate the strength and statistical significance of these correlations across studies .
The answers to these questions could potentially help identify which objective features have shown most promising results across studies .
Mobile phone use and stress, sleep disturbances, and symptoms of depression among young adults - a prospective cohort study
Background Because of the quick development and widespread use of mobile phones , and their vast effect on communication and interactions , it is important to study possible negative health effects of mobile phone exposure . The overall aim of this study was to investigate whether there are associations between psychosocial aspects of mobile phone use and mental health symptoms in a prospect i ve cohort of young adults . Methods The study group consisted of young adults 20 - 24 years old ( n = 4156 ) , who responded to a question naire at baseline and 1-year follow-up .  Mobile phone exposure variables included frequency of use , but also more qualitative variables : dem and s on availability , perceived stressfulness of accessibility , being awakened at night by the mobile phone , and personal overuse of the mobile phone . Mental health outcomes included current stress , sleep disorders , and symptoms of depression . Prevalence ratios ( PRs ) were calculated for cross-sectional and prospect i ve associations between exposure variables and mental health outcomes for men and women separately . Results There were cross-sectional associations between high compared to low mobile phone use and stress , sleep disturbances , and symptoms of depression for the men and women . When excluding respondents reporting mental health symptoms at baseline , high mobile phone use was associated with sleep disturbances and symptoms of depression for the men and symptoms of depression for the women at 1-year follow-up . All qualitative variables had cross-sectional associations with mental health outcomes . In prospect i ve analysis , overuse was associated with stress and sleep disturbances for women , and high accessibility stress was associated with stress , sleep disturbances , and symptoms of depression for both men and women . Conclusions High frequency of mobile phone use at baseline was a risk factor for mental health outcomes at 1-year follow-up among the young adults . The risk for reporting mental health symptoms at follow-up was greatest among those who had perceived accessibility via mobile phones to be stressful . Public health prevention strategies focusing on attitudes could include information and advice , helping young adults to set limits for their own and others ' accessibility
Hence , continuous and everyday monitoring of behavioral aspects in affective disorders could be a promising supplementary objective measure for estimating depressive mood symptoms .
BACKGROUND Several studies have recently reported on the correlation between objective behavioral features collected via mobile and wearable devices and depressive mood symptoms in patients with affective disorders ( unipolar and bipolar disorders ) .
However , individual studies have reported on different and sometimes contradicting results , and no quantitative systematic review of the correlation between objective behavioral features and depressive mood symptoms has been published .
OBJECTIVE The objectives of this systematic review were to ( 1 ) provide an overview of the correlations between objective behavioral features and depressive mood symptoms reported in the literature and ( 2 ) investigate the strength and statistical significance of these correlations across studies .
The answers to these questions could potentially help identify which objective features have shown most promising results across studies .