[Comparative study of 2 culture methods by seeding, in hemoculture bottles, the dialysis fluid from patients in continuous ambulatory peritoneal dialysis].

Background: Peritonitis remains a major complication of continuous ambulatory peritoneal dialysis (CAPD). The accurate diagnosis of peritonitis is a requirement for a successful CAPD program. A prospective study was performed to evaluate two culture methods.

[Sampling limitations in studies of primary care: comparison of 4 sampling designs].

Different sampling methodologies have been used to avoid the great amount of information which arises in Primary Health Care. The objective of this study is to compare the estimates of four sampling schemes, analyzing variables of utilization, referral activity and diagnostic morbidity, based on data obtained from consultations in a health centre over a one-year period. The percentage of error between each sample estimation and the real value for the whole data set was obtained.