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ObjectivesOur aim was to derive a short version of the Mobile Phone Problem Use Scale (MPPUS) using data from 412 adolescents of the Swiss HERMES (Health Effects Related to Mobile phonE use in adolescentS) cohort. MethodsA German version of the original MPPUS consisting of 27 items was shortened by principal component analysis (PCA) using baseline data collected in 2012. For confirmation the PCA was carried out again with follow-up data one year later. ResultsPCA revealed four factors related to symptoms of addiction("Loss of Control", "Withdrawal", "Negative Life Consequences" and "Craving") and a fifth factor reflecting the social component of mobile phone use ("Peer Dependence"). The shortened scale (MPPUS-10) highly reflects the original MPPUS (Kendalls' Tau: 0.80 with 90% concordant pairs). Internal consistency of MPPUS-10 was good with Cronbach's alpha: 0.85. The results were confirmed using the follow-up data. ConclusionsThe MPPUS-10 is a suitable instrument for research in adolescents. It will help to further clarify the definition of problematic mobile phone use in adolescents and explore similarities and differences to other technological addictions.

Objective Taking care of children diagnosed with cancer may have considerable consequences on parents' socio‐economic situation. Our systematic review aimed to evaluate and synthesise the evidence on the impact of childhood cancer on parents' socio‐economic situation. Methods Systematic literature searches for articles published between January 2000 and January 2019 were performed in PubMed, Scopus, and PsycINFO. Findings of eligible articles were narratively synthesised and quality appraised. Results Our systematic review included 35 eligible articles. Childhood cancer had a substantial impact on parents' socio‐economic situation across all studies. This impact varied largely by geographical region. We observed a high prevalence of disruptions in parental employment such as job quitting or job loss, particularly among mothers. The associated income losses further contributed to families' perceived financial burden in addition to increased cancer‐related expenses. Adverse socio‐economic consequences were most pronounced shortly after diagnosis, however, persisted into early survivorship for certain groups of parents. We identified families of children diagnosed with haematological cancers, younger age at diagnosis, and lower parental socio‐economic position to be at particular risk for adverse socio‐economic consequences. Conclusions Following the child's cancer diagnosis, parents experience a broad range of adverse socio‐economic consequences. Further effort is needed to systematically implement an assessment of financial hardship in paediatric oncology together with appropriate support services along the cancer trajectory.