Data on covariates, including age, income level (lowest quartile, second quartile, third quartile, and highest quartile), body mass index, alcohol consumption and physical activity (does not do exercise, exercises 12 times per week, exercises 34 times per week, exercises 56 times per week, and exercises almost every day), were collected from the first wave in 20022003
This becomes more important during longer sessions or detailed work that requires precision
As far as I was concerned, he was dead already
Acute pancreatitis A sudden inflammation that lasts a short time usually means acute pancreatitis
Statistical analysis Data are presented as mean standard deviation (SD), median, and 95% confidence interval (95% CI), or as frequency and percentage