Publications by authors named "G Polanczyk"
Characterizing the dynamics of microbial community succession in the infant gut microbiome is crucial for understanding child health and development, but no normative model currently exists. Here, we estimate child age using gut microbial taxonomic relative abundances from metagenomes, with high temporal resolution (±3 months) for the first 1.5 years of life.
View Article and Find Full Text PDFBackground: The diagnosis of attention-deficit/hyperactivity disorder (ADHD) in preschool years (before age 6 years) is a marker of severity and poor prognosis. This study investigated a broad range of predictors of ADHD diagnosis during preschool age.
Methods: Population-based cohort study using Swedish registers.
Objective: To identify the COVID-19 pandemic impact on well-being/mental health, coping strategies, and risk factors in adolescents worldwide.
Method: This study was based on an anonymous online multi-national/multi-language survey in the general population (representative/weighted non-representative samples, 14-17 years of age), measuring change in well-being (World Health Organization-Five Well-Being Index [WHO-5]/range = 0-100) and psychopathology (validated composite P-score/range = 0-100), WHO-5 <50 and <29, pre- vs during COVID-19 pandemic (April 26, 2020-June 26, 2022). Coping strategies and 9 a priori- defined individual/cumulative risk factors were measured.
Article Synopsis
- A study evaluated the effectiveness of the Motherly smartphone app, which is based on cognitive-behavioral therapy, for reducing postpartum depression symptoms in women aged 18-40.
- The research involved 264 participants who were divided into two groups: one used the Motherly app while the other used a control app, but no significant difference in depression symptoms was found between the two groups after treatment.
- Although the app did not show success in reducing depression, some secondary outcomes improved, and higher engagement with the app appeared to correlate with better outcomes, indicating that app use might need to be more consistent for effective results.
Article Synopsis
- The COH-FIT study is a large, multi-country survey aimed at identifying factors affecting wellbeing and mental health outcomes during the COVID-19 pandemic, involving a representative sample of 121,066 adults.
- Researchers analyzed both modifiable (like coping strategies and pre-pandemic stress) and non-modifiable factors (such as age, gender, and socioeconomic status), finding significant negative effects on wellbeing and psychopathology scores during the pandemic.
- The study identified 15 modifiable and 9 non-modifiable risk factors, alongside 13 modifiable and 3 non-modifiable protective factors, emphasizing the importance of social support and coping strategies in mental health outcomes.