Data quality issues impede comparability of hospital treatment delay performance indicators

Aim

To assess the comparability of five performance indicator scores for treatment delay among patients diagnosed with ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention in relation to the quality of the underlying data.

Methods

Secondary analyses were performed on data from 1017 patients in seven Dutch hospitals. Data were collected using standardised forms for patients discharged in 2012. Comparability was assessed as the number of occasions the indicator threshold was reached for each hospital.

Results

Hospitals recorded different time points based on different interpretations of the definitions. This led to substantial differences in indicator scores, ranging from 57 to 100 % of the indictor threshold being reached. Some hospitals recorded all the required data elements for calculating the performance indicators but none of the data elements could be retrieved in a fully automated way. Moreover, recording accessibility and completeness of time points varied widely within and between hospitals.

Conclusion

Hospitals use different definitions for treatment delay and vary greatly in the extent to which the necessary data are available, accessible and complete, impeding comparability between hospitals. Indicator developers, users and hospitals providing data should be aware of these issues and aim to improve data quality in order to facilitate comparability of performance indicators.

Adherence to guidelines for the prescription of secondary prevention medication at hospital discharge after acute coronary syndrome: a multicentre study

Background

The prescription of guideline-recommended medication for secondary prevention after acute coronary syndrome has been suboptimal in the past. In the present study, guideline adherence and associated patient, care and hospital characteristics at hospital discharge after acute coronary syndrome were studied.

Methods

Charts of patients with acute coronary syndrome discharged from 13 Dutch hospitals in 2012 were reviewed. Guideline adherence was defined as the prescription of acetylsalicylic acid, P2Y₁₂ receptor inhibitor, statin, beta-blocker and angiotensin-converting enzyme (ACE) inhibitor at discharge, or a documented contraindication. Associated characteristics were identified by means of generalized linear mixed models for binary outcomes.

Results

In total, 2471 patients were included. Complete guideline adherence was achieved in 69.1 % of the patients, ranging from 42.1 to 87.0 % between hospitals. The ACE inhibitor was most often missing (21.2 %). Patients with non-ST-segment elevation myocardial infarction or unstable angina, patients with a history of coronary artery bypass grafting or elderly women were less likely to be discharged with the guideline-recommended medication.

Conclusions

Guideline adherence for secondary prevention medication following acute coronary syndrome was substantial; however, variation between hospitals and patient groups was found. Efforts to increase guideline adherence can focus on underperforming hospitals and undertreated patient groups.

Monitoring guideline adherence in the management of acute coronary syndrome in hospitals: design of a multicentre study

Background

Increasing guideline adherence in the management of acute coronary syndrome (ACS) in hospitals potentially reduces heart failure and mortality. Therefore, an expert panel identified three guideline recommendations as the most important aims for improvement in ACS care, i.e. timely invasive treatment, use of risk scoring instruments and prescription of secondary prevention medication at discharge.

Aims

This study aims to evaluate in-hospital guideline adherence in the care of patients diagnosed with ACS and to identify associated factors.

Methods

The study has a cross-sectional design. Data are collected in 13 hospitals in the Netherlands by means of retrospective chart review of patients discharged in 2012 with a diagnosis of ACS. The primary outcomes will be the percentages of patients receiving timely invasive treatment, with a documented cardiac risk score, and with a prescription of the guideline-recommended discharge medication. In addition, factors associated with guideline adherence will be studied using generalised linear (mixed) models.

Discussion

This study explores guideline adherence in Dutch hospitals in the management of patients diagnosed with ACS, using a data source universally available in hospitals. The results of this study can be informative for professionals involved in ACS care as they facilitate targeted improvement efforts.

A database of protein expression in lung cancer

We have developed a comprehensive approach to identifying molecular changes in lung cancer that includes both genomic and proteomic analyses. The related effort has produced a large amount of data pertaining to gene expression at the RNA and protein levels. As a result, we have constructed a database that contains protein expression data on lung cancer as well as other relevant data including DNA microarray derived data. A large number of proteins that are expressed in different types of lung cancer have been identified and have been correlated with the expression measures for their corresponding genes at the RNA level. The database is intended to facilitate our effort at developing novel classification schemes for lung cancer and the identification of novel markers for early diagnosis.