Rafael Fernández-Crehuet Navajas

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We estimated the pooled risk of tobacco smoking for Parkinson's disease (PD). Inclusion criteria included systematic searches of MedLine, PsycLIT, Embase, Current Contents, previously published reviews, examination of cited reference sources, and personal contact and discussion with several investigators expert in the field. Published prospective studies on(More)
Anisakiasis, or anisakidosis, is a parasitic zoonosis due to the infestation by nematodes of the Anisakidae family, mainly by Anisakis simplex. Notwithstanding its world wide distribution, in our country its appearance is quite recent (1991) with only 19 cases previously reported. We refer 13 cases diagnosed in different hospitals in the province of(More)
533 cases of bacterial meningitis diagnosed in the province of Cordoba over a period of seven years are analyzed. 53.7% of the cases are in males, with 71.2% of the cases being detected in children under 14 (p less than 0.001). Greater incidence has been observed in Cordoba city than in the province, with a direct relationship being between morbidity and(More)
A systematic review was conducted to estimate the pooled risk of smoking for Parkinson's disease in Chinese populations. The four identified case-control studies had odds ratios with 95% confidence intervals nearly or overlapping unity. Pooled odds ratio of these studies was 0.77 with 95% confidence interval 0.60 to 0.97. It was suggested that smoking(More)
This study describes the behavior of eight statistical programs (BMDP, EGRET, JMP, SAS, SPSS, STATA, STATISTIX, and SYSTAT) when performing a logistic regression with a simulated data set that contains a numerical problem created by the presence of a cell value equal to zero. The programs respond in different ways to this problem. Most of them give a(More)
BACKGROUND Previous studies have suggested that the final outcome of a patient with nosocomial pneumonia (NP) may depend on the patient's illness severity upon admission to the intensive care unit (ICU). AIM To investigate the relationship between developing NP during hospitalization in an adult ICU and the risk of death with special focus on illness(More)
To more precisely define the epidemiological characteristics of meningococcal disease (MD) and to try to determine its possible risk factors, 224 cases diagnosed during the 1983-1987 period in all the hospitals of the Cordova province were evaluated. There was an incidence density (ID) of 6 cases/100,000/year. The younger ages were the most commonly(More)
PURPOSE To estimate the pooled risk of coffee consumption for Alzheimer's disease (AD). MATERIAL AND METHODS We have reviewed all observational studies that evaluated the association between AD risk and coffee consumption. Four studies were identified: two case-control studies and two cohorts. These studies were carried out between 1990 and 2002. (More)
INTRODUCTION Surgical site infection (SSI) is a very common problem in hospital infection control. It represents a risk for the safety of the patient and therefore its reduction is a priority in Health Services. The aim of the study is to analyse the incidence of SSI in the surgical departments of a tertiary hospital. MATERIAL AND METHODS A prospective(More)
OBJECTIVE Describe the cumulative incidence of suicide mortality and self-inflicted injuries in Spain during the period 1987-1991 and identify associated socioeconomic and meteorological factors. DESIGN Ecological study. SITE: Fifty Spanish provinces excluding Ceuta and Melilla. PATIENTS Spanish population during the study period. MAIN MEASUREMENTS(More)