Additional file 1 of Time trends in emotional well-being and self-esteem in children and adolescents during the COVID-19 pandemic

Additional file 1: Figure S1. Sample selection procedure. Table S1. Sociodemographic characteristics. Table S2. Weighted adjusted estimates of emotional well-being and self-esteem, excluding three municipalities participating in wave 3. Table S3. Weighted adjusted estimates of emotional well-being and self-esteem, excluding participants who reported having answered previous surveys (information only available in wave 3). Table S4. Weighted adjusted estimates and differences in emotional well-being and self-esteem, stratified by age (Fig. 2). Table S5. Weighted adjusted estimates and differences in emotional well-being and self-esteem stratified by gender (Fig. 2). Table S6. Associations between the Stringency Index and mental health outcomes and coefficients of multiplicative interaction terms between the Stringency Index and age group and gender

Variation in term birthweight across European countries affects the prevalence of small for gestational age among very preterm infants.

AIM: This study assessed the prevalence of small for gestational age (SGA) among very preterm (VPT) infants using national and European intrauterine references. METHODS: We generated country-specific and common European intrauterine growth references for 11 European countries, according to Gardosi's approach and Hadlock's foetal growth model, using national data on birthweights by sex. These references were applied to the Effective Perinatal Intensive Care in Europe (EPICE) cohort, which comprised 7766 live VPT births without severe congenital anomalies under 32 weeks of gestation in 2011-2012, to estimate the prevalence of infants with SGA birthweights, namely those below the 10th percentile. RESULTS: The SGA prevalence was 31.8% with country-specific references and 34.0% with common European references. The European references yielded a 10-point difference in the SGA prevalence between countries with lower term birthweights (39.9%) - Portugal, Italy and France - and higher term birthweights, namely Denmark, the Netherlands, Sweden (28.9%; p < 0.001). This was not observed with country-specific references, where the respective figures were 32.4% and 33.9% (p = 0.34), respectively. CONCLUSION: One-third of VPT infants were SGA according to intrauterine references. Common European references showed significant differences in SGA prevalence between countries with high and low-term birthweights