| 1. |
- Börnhorst, Claudia, et al.
(författare)
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Diet-obesity associations in children : approaches to counteract attenuation caused by misreporting
- 2013
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Ingår i: Public Health Nutrition. - : Cambridge University Press. - 1368-9800 .- 1475-2727. ; 16:2, s. 256-266
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Tidskriftsartikel (refereegranskat)abstract
- Objective: Measurement errors in dietary data lead to attenuated estimates of associations between dietary exposures and health outcomes. The present study aimed to compare and evaluate different approaches of handling implausible reports by exemplary analysis of the association between dietary intakes (total energy, soft drinks, fruits/vegetables) and overweight/obesity in children. Design: Cross-sectional multicentre study. Setting: Kindergartens/schools from eight European countries participating in the IDEFICS Study. Subjects: Children (n 5357) aged 2-9 years who provided one 24 h dietary recall and complete covariate information. Results: The 24 h recalls were classified into three reporting groups according to adapted Goldberg cut-offs: under-report, plausible report or over-report. In the basic logistic multilevel model (adjusted for age and sex, including study centre as random effect), the dietary exposures showed no significant association with overweight/obesity (energy intake: OR=0.996 (95% CI 0.983, 1.010); soft drinks: OR=0.999 (95% CI 0.986, 1.013)) and revealed even a positive association for fruits/vegetables (OR=1.009 (95% CI 1.001, 1.018)). When adding the reporting group (dummy variables) and a propensity score for misreporting as adjustment terms, associations became significant for energy intake as well as soft drinks (energy: OR=1.074 (95% CI 1.053, 1.096); soft drinks: OR=1.015 (95% CI 1.000, 1.031)) and the association between fruits/vegetables and overweight/obesity pointed to the reverse direction compared with the basic model (OR=0.993 (95% CI 0.984, 1.002)). Conclusions: Associations between dietary exposures and health outcomes are strongly affected or even masked by measurement errors. In the present analysis consideration of the reporting group and inclusion of a propensity score for misreporting turned out to be useful tools to counteract attenuation of effect estimates.
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| 2. |
- Formisano, Annarita, et al.
(författare)
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Family structure and childhood obesity: results of the IDEFICS project
- 2014
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Ingår i: Public Health Nutrition. - 1368-9800. ; 17:10, s. 2307-2315
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To analyze the association between family structure and adiposity in children. Design: Cross-sectional and longitudinal analysis of the IDEFICS (Identification and prevention of dietary- and lifestyle-induced health effects in children and infants) study cohort. Setting: Primary schools and kindergartens. Subjects: Children (n 12 350; aged 7 to 9 (SD 1.8) years) for the cross-sectional analysis and children (n 5236; at baseline: normal weight, aged 5 to 9 (SD 1.8) years) for the longitudinal study underwent anthropometry. Family structure was analyzed as (i) number and type of cohabiting adults and (ii) number of siblings. Results: In the cross-sectional analysis, after controlling for covariates, children living with grandparents had significantly higher BMI Z-score than those living with both parents (0.63; 95% CI 0.33, 0.92 v. 0.19; 95% CI 0.17, 0.22; P,0.01); in addition, the higher the number of siblings, the lower the BMI Z-score (only child 50.31; 95% CI 0.24, 0.38; 1 sibling 50.19; 95% CI 0.16, 0.23; 2 siblings 50.15; 95% CI 0.09, 0.20; >2 siblings 50.07, 95% CI 0.04, 0.19;P,0.001). Over the 2-year follow-up, differences in weight gain were observed across family-structure categories. Further, the risk of incidence of overweight/ obesity was significantly lower the higher the number of siblings living in the household (v. only child: 1 sibling 50.74, 95% CI 0.57, 0.96; 2 siblings 50.63, 95% CI 0.45, 0.88; >2 siblings 50.40, 95% CI 0.21, 0.77), independently of confounders. Conclusions: The study suggests that an independent association between family structure and childhood obesity exists.
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| 3. |
- Hunsberger, Monica, et al.
(författare)
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Validity of self-reported lunch recalls in Swedish school children aged 6-8 years
- 2013
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Ingår i: Nutrition Journal. - : BioMed Central. - 1475-2891. ; 12
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Tidskriftsartikel (refereegranskat)abstract
- Background: Previous studies have suggested that young children are inaccurate reporters of dietary intake. The purpose of this study was to validate a single recall of the previous day's school lunch reported by 6-8 year old Swedish children and to assess teacher-recorded intake of the same meal in a standardized food journal. An additional research question was whether parents could report their child's intake of the previous day's lunch. Subjects constituted a convenience sample from the large, multi-country study Identification and prevention of Dietary-and lifestyle-induced health EFfects In Children and infantS (IDEFICS). Validations of both children's recalls and teachers' records were made by comparing results with the duplicate plate reference method. Findings: Twenty-five children (12 boys/13 girls) aged 6-8 years participated in the validation study at one school in western Sweden. Children were accurate self-reporters of their dietary intake at lunch, with no significant difference between reported and weighed intake (Mean difference (SD): 7(50) kcals, p=0.49). Teachers significantly over-reported intake (Mean difference (SD): 65(79) kcals, p=0.01). For both methods, child-reported and teacher-recorded, correlations with weighed intake were strong (Pearson's correlations r=0.92, p<0.001 and r=0.83, p<0.001 respectively). Bland-Altman plots showed strong agreement between child-reported and weighed intakes but confirmed systematic differences between teacher-records and weighed intakes. Foods were recalled by children with a food-match rate of 90%. In all cases parents themselves were unable to report on quantities consumed and only four of 25 children had parents with knowledge regarding food items consumed. Conclusions: Children 6-8 years of age accurately recalled their school lunch intake for one occasion while teachers recorded with less accuracy. Our findings suggest that children as young as six years of age may be better able to report on their dietary intake than previously suggested, at least for one main meal at school. Teacher-recorded intake provides a satisfactory estimate but with greater systematic deviation from the weighed intake. Parents were not able to report on their children's school lunches consumed on the previous day.
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| 4. |
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| 5. |
- Mellqvist Fässberg, Madeleine, et al.
(författare)
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Epidemiology of suicidal feelings in an ageing Swedish population: From old to very old age in the Gothenburg H70 Birth Cohort Studies
- 2020
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Ingår i: Epidemiology and Psychiatric Sciences. - 2045-7960. ; 29
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Tidskriftsartikel (refereegranskat)abstract
- AimsThe first aim of this study was to provide prevalence suicidal feelings over time (past week, past month, past year and lifetime) in a population-based sample of old to very old adults without dementia. Does prevalence change with rising age? The second aim was to examine the fluctuation of suicidal feelings over time. How does this coincide with depression status?MethodsData were derived from the Gothenburg H70 Birth Cohort Studies (the H70 studies) which are multidisciplinary longitudinal studies on ageing. A representative sample of adults in Gothenburg, Sweden with birth years 1901-1944 were invited to take part in a longitudinal health study on ageing and participated at one or more occasions during 1986-2014. The sample consisted of 6668 observations originating from 3972 participants without dementia between the ages of 70 and 108, including 1604 participants with multiple examination times. Suicidal feelings were examined during a psychiatric interview using the Paykel questions (life not worth living, death wishes, thoughts of taking own life, seriously considered taking life, attempted suicide).ResultsPrevalence figures for suicidal feelings of any severity were as follows: past week 4.8%, past month 6.7%, past year 11.2% and lifetime 25.2%. Prevalence rates increased with age in the total group and in women but not in men. Suicidal feelings were common in participants with concurrent major or minor depression, but over a third of the participants who reported suicidal feelings did not fulfil criteria for these diagnoses nor did they present elevated mean depressive symptom scores. The majority of participants consistently reported no experience of suicidal feelings over multiple examination times, but fluctuation was more common in women compared with men.ConclusionSuicidal feelings in late-life are uncommon in individuals without depression indicating that such behaviour is not a widespread, normative phenomenon. However, such feelings may occur outside the context of depression. © Cambridge University Press 2019.
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| 6. |
- Michels, Nathalie, et al.
(författare)
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Determinants and reference values of short-term heart rate variability in children.
- 2013
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Ingår i: European journal of applied physiology. - : Springer Science and Business Media LLC. - 1439-6327 .- 1439-6319. ; 113:6, s. 1477-1488
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Tidskriftsartikel (refereegranskat)abstract
- This paper provides age- and sex-specific reference values for short-term heart rate variability (HRV) data in children by time domain and frequency domain methods. Furthermore, HRV determinants will be determined. In 460 children (5-10years), 5-minute HRV measurements in supine position were undertaken with Polar chest belts. The data were manually edited and processed with time and frequency domain methods. Age, time point, physical activity (accelerometry), physical fitness (cardiopulmonary fitness, upper and lower limb muscular fitness) and body composition (body mass index, fat%, fat and fat-free mass) were analysed as determinants using multiple regression analysis stratified by sex. Sex- and age-specific reference values were produced. Overall, girls had lower HRV. Age-related parasympathetic increases and sympathetic decreases were seen with sometimes age-related year-to-year wave-like changes in boys. The time point of recording had limited influence on HRV. Of the lifestyle related factors, fatness (only 7% overweight) was not associated with HRV but fat-free mass, physical activity and in particular physical fitness (over and above activity) had a favourable association by increased parasympathetic activity. Future HRV studies in children should consider age, sex and physical fitness.
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| 7. |
- VANAELST, BARBARA, et al.
(författare)
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Intercorrelations between serum, salivary, and hair cortisol and child-reported estimates of stress in elementary school girls
- 2012
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Ingår i: Psychophysiology. - : Wiley. - 0048-5772 .- 1469-8986. ; 49:8, s. 1072-1081
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Tidskriftsartikel (refereegranskat)abstract
- To evaluate the impact of stress on children's well-being, it is important to have valid and reliable stress assessment methods. Nevertheless, selection of an appropriate method for a particular research question may not be straightforward, as there is currently no consensus on a reference method to measure stress in children. This article examined to what extent childhood stress can be estimated accurately by stressor questionnaires (i.e., Coddington Life Events Scale) and biological markers (serum, salivary, and hair cortisol) using the Triads (a triangulation) method in 272 elementary school girls. Salivary cortisol was shown to most accurately indicate true childhood stress for short periods in the past (i.e., last 3 months), whereas hair cortisol may be preferred above salivary measurements for periods more distant and thus for chronic stress assessment. However, applicability should be confirmed in larger and more heterogeneous populations.
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