Abstract Background Patients with acute abdominal pathology requiring emergency laparotomy who experience a delay to theatre have an increased risk of morbidity, mortality and complications. The aim this study was assess delay, from symptom onset in patients gastrointestinal perforation its effect on perioperative risk. Method A single-centre retrospective performed the Leeds Trust Hospitals, U...

The paper includes the analyzes of a possibility applying index to quantify different climate variables. calculation methodology was presented as well standard features most important weather indices such temperature, precipitation (SPI), decile and quantile indices. In addition mentioned that can be conditionally classified simpler, composite indices, developed on complex basis, Guy Carpenter ...

On average, persons receiving Social Security benefits tend to have lower current incomes than do persons paying Social Security taxes. This article documents OASDI's income distributional patterns by dividing the 1992 Current Population Survey population into 10 income deciles and tabulating benefits received and taxes paid by each decile. The benefits and taxes, when compared with non-Social ...

OBJECTIVE Increased left ventricular mass index has been associated with higher mortality. We analyze the effect of increased left ventricular mass index on outcomes in patients undergoing aortic valve replacement. METHODS Echocardiographic left ventricular dimensions were used to calculate left ventricular mass index in 614 patients who underwent aortic valve replacement between June 1993 an...

Elevated alanine aminotransferase (ALT) activity, an important marker of liver injury, has been associated inconsistently with higher mortality. We evaluated whether persons with nonelevated ALT levels are the most appropriate comparison group by examining the relationships of low ALT with mortality and body composition in the US National Health and Nutrition Examination Survey (NHANES). In NHA...

A total of 1712 men aged 40 to 59 years in two rural cohorts of northern and central Italy have been followed up for 25 years after an entry examination in 1960. Forty one individual characteristics have been considered as possible predictors of death in the next 25 years. After exclusion of 55 men with life threatening diseases (cardiovascular and cancer) and of 161 men because of missing meas...

STUDY OBJECTIVE Quantitative evidence linking environmental exposures and social status at sub-national scales is surprisingly limited. This study investigated the public health risks associated with community water supplies in relation to social status in New Zealand. DESIGN An ecological study using a Geographic Information System (GIS) to compare the grade of community water supplies with ...

BACKGROUND Hospital volume has been linked to quality of care. The relation between hospital volume and recommended use of bioprosthetic valves in older patients undergoing aortic valve replacement (AVR) is unknown. METHODS AND RESULTS We identified 80,470 patients aged > or =65 years undergoing isolated AVR (with or without bypass surgery) in 1045 US hospitals during 1999-2001 from Medicare ...

Phospholipids in specimens of amniotic fluid from 346 patients were quantified and the results evaluated in light of the clinical outcome. Fifty-eight neonates had respiratory distress syndrome. We used this data base to compare different statistical methods for evaluating test effectiveness and diagnostic discrimination. Dichotomizing quantitative tests into binary tests with arbitrary cutoff ...

OBJECTIVE To project the proportion of population 65+ years with severe long-term activity limitations from 2017 to 2047. DESIGN Large population study. SETTING Population living in private households of the European Union (EU) and neighbouring countries. PARTICIPANTS Participants from the EU Statistics on Income and Living Conditions aged 55 years and older and living in one of 26 EU and...