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Evaluation of Primary Care (PC) must include different perspectives. The objective of the study was to know the assessment of the PC in Catalonia and detecting whether or not a pattern of social inequality exists, through user's experience. A cross-sectional study was conducted, in a representative sample (n = 13,292) of the Catalonia population (aged 15), who identify a reference professional. It was studied an index of experience with PC by personal variables and variables about the reference professional. Negative binomial regression models (bivariate and multivariate) were adjusted to obtain the prevalence ratios and confidence intervals of 95%. The index gained an average of 71 (scale 0-100). A rating above 70 was associated with higher age, greater number of visits in the last year, more time with the same professional and living in an area of lower population density. Items with lower scores: telephone attention and availability of mental health services. We concluded that factors associated with a better experience are associated with more frequent visits to professionals. We did not detect social inequalities., (Copyright © 2011 Elsevier España S.L. All rights reserved.)

Background and Objective: This study assesses the reliability and validity of the KIDSCREEN-52, a new questionnaire of health-related quality of life (HRQoL), cross-culturally developed for children and adolescents in 13 European countries., Subjects and Method: The KIDSCREEN-52 was sent by post to a representative sample of the Spanish population aged 8-18 years old. Sociodemographic characteristics and other measures of HRQoL were collected. A health needs instrument was collected from parents. Psychome tric properties were assessed using the classical test theory, and item response theory approaches. Test-retest reliability was assessed in 10% of the sample 2-4 weeks later., Results: Response rate was 47% (n = 876). Cronbach's alpha values ranged from 0.74 to 0.86, and the intraclass correlation coefficient ranged between 0.55-0.79. Rasch analysis showed a good item-fit in each dimension (infit msq = 0.7-1.2). Confirmatory factor analysis confirms underlying structure of the 10 dimensions model (root mean square error of approximation [REMSEA] = 0.025; comparative fit index [CFI] = 0.94). KIDSCREEN scores were better in boys, in younger children, in those who did not report health care needs, and in those in the high socioeconomic level., Conclusions: The KIDSCREEN-52 questionnaire has acceptable levels of reliability and validity for the Spanish population aged 8-18. Further work is needed to assess sensitivity to change and its applicability in clinical settings.