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Objectives: To analyze the reliability and validity of the Spanish version of the OSA-18 quality of life questionnaire in children with apnea-hypopnea syndrome (SAHS)., Method: Children with suspected SAHS were studied with polysomnography (PSG) before and after adenotonsillectomy (AA). Age, gender, clinical data, PSG, anthropometric data, and Mallampati and Brodsky scales were analyzed. OSA-18 was administered at baseline and 3-6months post AA. After translation and backtranslation by bilingual professionals, the internal consistency, reliability, construct validity, concurrent validity, predictive validity and sensitivity to change of the questionnaire was assessed., Results: In total, 45 boys and 15 girls were evaluated, showing BMI 18±4, neck 28±5, Brodsky (0: 7%; <25%: 12%; 25-50%: 27%; >50 to <75%: 45%; >75%: 6%), AHI 12±7 pre AA. Global Cronbach alpha was 0.91. Correlations between domains were significant except for emotional aspects, although the total scores correlated with all domains (0.50 to 0.90). The factorial analysis was virtually identical to the original structure. The total scores showed good correlation for concurrent validity (0.2-0.45). With regard to predictive validity, the questionnaire adequately differentiated levels of severity according to Mallampati (ANOVA P=.002) and apnea-hypopnea index (ANOVA P=.006). Test-retest reliability was excellent, as was sensitivity to change, both in the total scores (P<.001) and in each domain (P<.001)., Conclusions: The Spanish adaptation of the OSA-18 and its psychometric characteristics suggest that the Spanish version is equivalent to the original and can be used in Spanish-speaking countries., (Copyright © 2016 SEPAR. Publicado por Elsevier España, S.L.U. All rights reserved.)

Introduction and Objectives: The impact of acute myocardial infarction in labour activity changes from one country to another as well as patients' characteristics. Our purpose was aimed to learn the main demographic, professional, clinical and therapeutic variables which might affect the return to work after suffering a myocardial infarction in our environment., Methods: 584 patients treated consecutively in our Coronary Unit for 4 years, aged under 65, were studied. The following aspects were analyzed: age, sex, previous ischaemic heart disease, previous working condition, professional level, economical area of labour activity, main therapeutic procedures and complications, number of days of sick leave, posterior labour status and date of invalidity or death, should it occur. The minimum follow up period was two years., Results: 65.3% of patients were regularly working before suffering the myocardial infarction. Mean length of sick leave after myocardial infarction was 243.9 days although it changed according to age and economical areas. 56.6% of the patients returned to work according to age (odds ratio = 0.92), high professional status (odds ratio = 2.14), economical area of services (odds ratio = 2.03), and the presence of previous anginal attacks (odds ratio = 1.73)., Conclusions: In our environment, patients less likely to resume their work after suffering a myocardial infarction are older, working in agricultural and industrial areas, with a lower professional level and without known ischemic heart disease antecedents.