A critical examination of Danish norms for the Strengths and Difficulties Questionnaire (SDQ).

OBJECTIVE: The objective was to describe observed differences between the official Danish Strengths and Difficulties Questionnaire (SDQ)-norms and data from a sample based on the Danish National Birth Cohort (DNBC) including children born between 1996 and 2003. We compared the risk classification, cut-off bandings and the group sizes between the Danish norms and the values found in our sample at ages 7, 11 and 18 years. RESULTS: Two sets of norms are used in Denmark: Arnfred's norms, based on a sample from one single Danish municipality and Niclasen's norms, based on multiple Danish cohorts, including the DNBC. Inconsistencies were found between banding scores in the two existing norms and the banding scores identified in our sample from DNBC: discrepancies included banding scores for several of the problem scales for children and preadolescents. For adolescents, we found less apparent inconsistencies between Arnfred's sample and the DNBC. Results demonstrate that the existing SDQ norms do not apply well to a large-scale cohort sample in Denmark. The usefulness of the SDQ as a screening instrument for mental health problems depends on appropriate norms. We therefore urge that the current Danish SDQ norms are used with caution, and preferably they should be revised.

Antibiotic prescribing among elderly living in long-term care facilities versus elderly living at home: a Danish registry-based study.

BACKGROUND: The objective of this study was to compare antibiotic prescription rates in Denmark among elderly living in long-term care facilities to elderly living at home, with regards to total antibiotic use and antibiotic use for urinary tract infection. METHODS: This is an observational registry-based study. The study population included all elderly Danish residents aged ≥75 years in 2016. Linear regression models were used to examine the difference in antibiotic prescription rates between elderly living in long-term care facilities and elderly living at home. Results were adjusted for age, sex and comorbidity, the latter assessed via the Charlson Comorbidity Index. RESULTS: The study population consisted of 416,627 elderly. Regression models showed that elderly living in long-term care facilities were prescribed 1.7 [CI 1.7-1.7] prescriptions/individual/year more than elderly living at home. For urinary tract infections the difference between elderly living in long-term care facilities and elderly living at home was 1.2 [CI 1.2-1.3] prescriptions/individual/year. CONCLUSIONS: Elderly living in long-term care facilities have a higher antibiotic prescribing rate than elderly living at home, despite controlling for age, sex and comorbidity. This indicates that long-term care facilities continuously should be a focus for antibiotic stewardship interventions.