Double-blind control of the data manager doesn't have any impact on data entry reliability and should be considered as an avoidable cost.

Background: Database systems have been developed to store data from large medical trials and survey studies. However, a reliable data storage system does not guarantee data entering reliability.We aimed to evaluate if double-blind control of the data manager might have any effect on data-reliability.

Screening Evaluation System--Europe (SESy_Europe) met skin cancer screening.

Skin tumors are the most frequent malignancies in the white population worldwide and have reached the proportion of an epidemic disease. Since non-melanocytic skin cancers can be cured when timely detected, given that still malignant melanoma may have good prognosis if early diagnosed, and considering the key role of primary care in cancer screening advising and implementation, the international PACMeR study group (trial_01.3) adjourned SESy_Europe database in a version comprehensive of skin-malignancies screening indexing.

Socio-demographic status and alcohol drinking patterns among Greek healthy adults.

Aim: To analyze socio-demographic correlates of alcohol drinking among Greek healthy adults.

Methods: Data related to alcohol consumption patterns of 5500 adult individuals, coming from 26 Hellenic provinces were abstracted from SESy-Europe database within a framework of the nationwide Hellenic anticancer-trial PACMeR 02 study. Statistic: chi2 test and logistic regression analyses were used.

Old habits die hard: chest radiography for screening purposes in primary care.

Objective: To assess whether the use of chest radiography for screening changes over time.

Design: Systematic review.

Data Sources: MEDLINE, ISI, Cochrane Central Register of Controlled Trials, and handsearching of selected journals.

Colorectal cancer screening awareness among physicians in Greece.

Background: Data comparison between SEER and EUROCARE database provided evidence that colorectal cancer survival in USA is higher than in European countries. Since adjustment for stage at diagnosis markedly reduces the survival differences, a screening bias was hypothesized. Considering the important role of primary care in screening activities, the purpose of the study was to investigate the colorectal cancer screening awareness among Hellenic physicians.

Screening chest radiography: results from a Greek cross-sectional survey.

Background: Public health authorities worldwide discourage the use of chest radiography as a screening modality, as the diagnostic performance of chest radiography does not justify its application for screening and may even be harmful, since people with false positive results may experience anxiety and concern. Despite the accumulated evidence, various reports suggest that primary care physicians throughout the world still prescribe chest radiography for screening. We therefore set out to index the use of chest radiography for screening purposes among the healthy adult population and to analyze its relationship with possible trigger factors.