Refine
Document Type
- Article (2)
Language
- English (2) (remove)
Has Fulltext
- yes (2)
Is part of the Bibliography
- no (2)
Keywords
- Longitudinal analysis (2) (remove)
Institute
- Gesellschaftswissenschaften (1)
- Medizin (1)
Children from upper-class families have better cognitive outcomes and fewer behavioural problems than those from working-class families. Previous studies highlighted that the class gap in child development is partially driven by differences in parenting styles, but they rarely looked at multiple, more specific dimensions of parenting, i.e., inductive reasoning, parenting consistency, warmth and anger. This study provides a systematic account of how parental social class shapes these four dimensions of parenting, and how these dimensions affect children’s cognitive outcomes and behavioural problems. Using high-quality, longitudinal data, and both hybrid models and the generalized methods of moments, this study reports two main findings. First, upper-class parents significantly differ from lower-class parents in two parenting dimensions, displaying more inductive reasoning and parenting consistency, but no relevant class differences are found in the two emotion-type dimensions of parenting (i.e., warmth and anger). Second, all four parenting dimensions have a strong impact on children’s behavioural problems, while they do not affect cognitive outcomes. An exception is consistency, the only dimension that affects both types of child outcomes. The study underscores the relevance of analysing parenting and child development from a multidimensional approach to better understand how upper-class parents transmit advantage to children.
Background: Health-related and disease-specific quality of life (HRQoL) has been increasingly valued as relevant clinical parameter in cystic fibrosis (CF) clinical care and clinical trials. HRQoL measures should assess – among other domains – daily functioning from a patient’s perspective. However, validation studies for the most frequently used HRQoL questionnaire in CF, the Cystic Fibrosis Questionnaire (CFQ), have not included measures of physical activity or fitness. The objective of this study was, therefore, to determine the cross-sectional and longitudinal relationships between HRQoL, physical activity and fitness in patients with CF.
Methods: Baseline (n = 76) and 6-month follow-up data (n = 70) from patients with CF (age ≥12 years, FEV1 ≥35%) were analysed. Patients participated in two multi-centre exercise intervention studies with identical assessment methodology. Outcome variables included HRQoL (German revised multi-dimensional disease-specific CFQ (CFQ-R)), body composition, pulmonary function, physical activity, short-term muscle power, and aerobic fitness by peak oxygen uptake and aerobic power.
Results: Peak oxygen uptake was positively related to 7 of 13 HRQoL scales cross-sectionally (r = 0.30-0.46). Muscle power (r = 0.25-0.32) and peak aerobic power (r = 0.24-0.35) were positively related to 4 scales each, and reported physical activity to 1 scale (r = 0.29). Changes in HRQoL-scores were directly and significantly related to changes in reported activity (r = 0.35-0.39), peak aerobic power (r = 0.31-0.34), and peak oxygen uptake (r = 0.26-0.37) in 3 scales each. Established associates of HRQoL such as FEV1 or body mass index correlated positively with fewer scales (all 0.24 < r < 0.55).
Conclusions: HRQoL was associated with physical fitness, especially aerobic fitness, and to a lesser extent with reported physical activity. These findings underline the importance of physical fitness for HRQoL in CF and provide an additional rationale for exercise testing in this population.
Trial registration: ClinicalTrials.gov, NCT00231686