Published in BMC Health Serv Res on June 15, 2006
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Bisphosphonate use and increased incidence of subtrochanteric fracture in South Korea: results from the National Claim Registry. Osteoporos Int (2012) 1.84
Validation of ICD-9-CM/ICD-10 coding algorithms for the identification of patients with acetaminophen overdose and hepatotoxicity using administrative data. BMC Health Serv Res (2007) 1.41
Validation of case-finding algorithms derived from administrative data for identifying adults living with human immunodeficiency virus infection. PLoS One (2011) 1.32
Low documentation of chronic kidney disease among high-risk patients in a managed care population: a retrospective cohort study. BMC Nephrol (2009) 1.08
Validity of hospital discharge diagnosis codes for stroke: the Atherosclerosis Risk in Communities Study. Stroke (2014) 1.07
Do coder characteristics influence validity of ICD-10 hospital discharge data? BMC Health Serv Res (2010) 1.03
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Inpatient rehabilitation outcomes in patients with malignant spinal cord compression compared to other non-traumatic spinal cord injury: A population based study. J Spinal Cord Med (2015) 0.99
Higher serum uric acid as a protective factor against incident osteoporotic fractures in Korean men: a longitudinal study using the National Claim Registry. Osteoporos Int (2014) 0.98
Postoperative complications following colectomy for ulcerative colitis: a validation study. BMC Gastroenterol (2012) 0.96
Hospital discharge diagnostic and procedure codes for upper gastro-intestinal cancer: how accurate are they? BMC Health Serv Res (2012) 0.92
Disparities in diabetes-related preventable hospitalizations among working-age Native Hawaiians and Asians in Hawai'i. Hawaii J Med Public Health (2014) 0.89
Multiple chronic conditions and disabilities: implications for health services research and data demands. Health Serv Res (2010) 0.88
Describing the content of primary care: limitations of Canadian billing data. BMC Fam Pract (2012) 0.86
Validation of Medicaid Claims-based Diagnosis of Myocardial Infarction Using an HIV Clinical Cohort. Med Care (2015) 0.81
Validity of ICD-9-CM codes for breast, lung and colorectal cancers in three Italian administrative healthcare databases: a diagnostic accuracy study protocol. BMJ Open (2016) 0.80
Prematurity, asphyxia and congenital malformations underrepresented among neonates in a tertiary pediatric hospital in Vietnam. BMC Pediatr (2012) 0.80
Long-term prognostic value of early poststress (99m)Tc-tetrofosmin lung uptake during exercise (SPECT) myocardial perfusion imaging. Eur J Nucl Med Mol Imaging (2009) 0.79
Validation of coding algorithms for the identification of patients with primary biliary cirrhosis using administrative data. Can J Gastroenterol (2010) 0.79
Validation and optimisation of an ICD-10-coded case definition for sepsis using administrative health data. BMJ Open (2015) 0.78
Bayesian estimation of the accuracy of ICD-9-CM- and CPT-4-based algorithms to identify cholecystectomy procedures in administrative data without a reference standard. Pharmacoepidemiol Drug Saf (2015) 0.77
Protocol for validating cardiovascular and cerebrovascular ICD-9-CM codes in healthcare administrative databases: the Umbria Data Value Project. BMJ Open (2017) 0.75
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Diagnostic accuracy of administrative data algorithms in the diagnosis of osteoarthritis: a systematic review. BMC Med Inform Decis Mak (2016) 0.75
Accuracy of the Charlson index comorbidities derived from a hospital electronic database in a teaching hospital in Saudi Arabia. Perspect Health Inf Manag (2013) 0.75
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Coding algorithms for defining comorbidities in ICD-9-CM and ICD-10 administrative data. Med Care (2005) 30.41
Small area variations in health care delivery. Science (1973) 14.34
Diabetes in Ontario: determination of prevalence and incidence using a validated administrative data algorithm. Diabetes Care (2002) 10.24
New ICD-10 version of the Charlson comorbidity index predicted in-hospital mortality. J Clin Epidemiol (2004) 7.20
Awareness, treatment, and control of hypertension in Canada. Am J Hypertens (1997) 4.76
Severity-adjusted mortality and length of stay in teaching and nonteaching hospitals. Results of a regional study. JAMA (1997) 4.44
Measuring underuse of necessary care among elderly Medicare beneficiaries using inpatient and outpatient claims. JAMA (2000) 3.89
Epidemiology of Crohn's disease and ulcerative colitis in a central Canadian province: a population-based study. Am J Epidemiol (1999) 3.34
Influence of hospital procedure volume on outcomes following surgery for colon cancer. JAMA (2000) 3.18
Relation between hospital primary angioplasty volume and mortality for patients with acute MI treated with primary angioplasty vs thrombolytic therapy. JAMA (2000) 3.06
Congestive heart failure in the United States: is there more than meets the I(CD code)? The Corpus Christi Heart Project. Arch Intern Med (2000) 3.03
Administrative data for public health surveillance and planning. Annu Rev Public Health (2001) 2.57
How good are the data? Reliability of one health care data bank. Med Care (1982) 2.56
Using Medicare claims for outcomes research. Med Care (1994) 2.46
A survey to identify the clinical coding and classification systems currently in use across Europe. Stud Health Technol Inform (2001) 2.41
Comparison of 2 methods for calculating adjusted survival curves from proportional hazards models. JAMA (2001) 2.05
The quality of record keeping in primary care: a comparison of computerised, paper and hybrid systems. Br J Gen Pract (2003) 1.84
Analysis of automated administrative and survey databases to study patterns and outcomes of care. Spine (Phila Pa 1976) (1994) 1.25
Surveillance of major causes of hospitalization among the elderly, 1988. MMWR CDC Surveill Summ (1991) 1.05
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Coding algorithms for defining comorbidities in ICD-9-CM and ICD-10 administrative data. Med Care (2005) 30.41
The Canadian Adverse Events Study: the incidence of adverse events among hospital patients in Canada. CMAJ (2004) 21.24
Increasing incidence and prevalence of the inflammatory bowel diseases with time, based on systematic review. Gastroenterology (2011) 12.09
Outcome of heart failure with preserved ejection fraction in a population-based study. N Engl J Med (2006) 10.58
Daclatasvir plus sofosbuvir for previously treated or untreated chronic HCV infection. N Engl J Med (2014) 9.25
Active smoking and the risk of type 2 diabetes: a systematic review and meta-analysis. JAMA (2007) 7.79
Early appraisal of China's huge and complex health-care reforms. Lancet (2012) 7.71
New ICD-10 version of the Charlson comorbidity index predicted in-hospital mortality. J Clin Epidemiol (2004) 7.20
Relation between age and cardiovascular disease in men and women with diabetes compared with non-diabetic people: a population-based retrospective cohort study. Lancet (2006) 6.64
Genome-wide association study in a Chinese Han population identifies nine new susceptibility loci for systemic lupus erythematosus. Nat Genet (2009) 6.42
Predicting mortality among patients hospitalized for heart failure: derivation and validation of a clinical model. JAMA (2003) 6.39
Adherence with statin therapy in elderly patients with and without acute coronary syndromes. JAMA (2002) 6.30
A population-based study of the drug interaction between proton pump inhibitors and clopidogrel. CMAJ (2009) 6.21
D-dimer for the exclusion of acute venous thrombosis and pulmonary embolism: a systematic review. Ann Intern Med (2004) 6.15
Association of alcohol consumption with selected cardiovascular disease outcomes: a systematic review and meta-analysis. BMJ (2011) 6.11
Validity of information on comorbidity derived rom ICD-9-CCM administrative data. Med Care (2002) 5.92
Mortality among hospitalized Medicare beneficiaries in the first 2 years following ACGME resident duty hour reform. JAMA (2007) 5.81
Mortality among patients in VA hospitals in the first 2 years following ACGME resident duty hour reform. JAMA (2007) 5.50
Physician wellness: a missing quality indicator. Lancet (2009) 5.50
Updating and validating the Charlson comorbidity index and score for risk adjustment in hospital discharge abstracts using data from 6 countries. Am J Epidemiol (2011) 5.41
A modification of the Elixhauser comorbidity measures into a point system for hospital death using administrative data. Med Care (2009) 5.13
Comparison of the Elixhauser and Charlson/Deyo methods of comorbidity measurement in administrative data. Med Care (2004) 5.12
Acetylcysteine in the prevention of contrast-induced nephropathy: a case study of the pitfalls in the evolution of evidence. Arch Intern Med (2006) 4.90
A multicenter study of the coding accuracy of hospital discharge administrative data for patients admitted to cardiac care units in Ontario. Am Heart J (2002) 4.65
Comparison of coding of heart failure and comorbidities in administrative and clinical data for use in outcomes research. Med Care (2005) 4.30
Assessing validity of ICD-9-CM and ICD-10 administrative data in recording clinical conditions in a unique dually coded database. Health Serv Res (2008) 4.25
Validity of procedure codes in International Classification of Diseases, 9th revision, clinical modification administrative data. Med Care (2004) 4.15
The mammalian exosome mediates the efficient degradation of mRNAs that contain AU-rich elements. EMBO J (2002) 4.13
Warfarin use and the risk for stroke and bleeding in patients with atrial fibrillation undergoing dialysis. Circulation (2014) 3.78
Risk of perforation after colonoscopy and sigmoidoscopy: a population-based study. J Natl Cancer Inst (2003) 3.71
The reporting of methodological factors in randomized controlled trials and the association with a journal policy to promote adherence to the Consolidated Standards of Reporting Trials (CONSORT) checklist. Control Clin Trials (2002) 3.62
Adapting the Charlson Comorbidity Index for use in patients with ESRD. Am J Kidney Dis (2003) 3.60
Psoriasis genome-wide association study identifies susceptibility variants within LCE gene cluster at 1q21. Nat Genet (2009) 3.59
Relation of disease pathogenesis and risk factors to heart failure with preserved or reduced ejection fraction: insights from the framingham heart study of the national heart, lung, and blood institute. Circulation (2009) 3.55
Assessing the association of appropriateness of coronary revascularization and clinical outcomes for patients with stable coronary artery disease. J Am Coll Cardiol (2012) 3.45
Effect of socioeconomic status on treatment and mortality after stroke. Stroke (2002) 3.44
Accuracy of obstetric diagnoses and procedures in hospital discharge data. Am J Obstet Gynecol (2006) 3.34
Use of proton pump inhibitors and risk of osteoporosis-related fractures. CMAJ (2008) 3.31
Survival after coronary revascularization in the elderly. Circulation (2002) 3.17
Failure-to-rescue: comparing definitions to measure quality of care. Med Care (2007) 3.16
A role for small RNAs in DNA double-strand break repair. Cell (2012) 3.15
Potentially preventable strokes in high-risk patients with atrial fibrillation who are not adequately anticoagulated. Stroke (2008) 3.14
Prognosis and determinants of survival in patients newly hospitalized for heart failure: a population-based study. Arch Intern Med (2002) 3.09
Cost analysis of ongoing care of patients with end-stage renal disease: the impact of dialysis modality and dialysis access. Am J Kidney Dis (2002) 3.06
Early risk of stroke after transient ischemic attack: a systematic review and meta-analysis. Arch Intern Med (2007) 3.06
Risk-treatment mismatch in the pharmacotherapy of heart failure. JAMA (2005) 3.05
Socioeconomic status and mortality after acute myocardial infarction. Ann Intern Med (2006) 3.02
Development of an online tool to determine appropriateness for an epilepsy surgery evaluation. Neurology (2012) 2.97
Rhythm versus rate control therapy and subsequent stroke or transient ischemic attack in patients with atrial fibrillation. Circulation (2012) 2.96
National trends in rates of death and hospital admissions related to acute myocardial infarction, heart failure and stroke, 1994-2004. CMAJ (2009) 2.89
Comparing hierarchical modeling with traditional logistic regression analysis among patients hospitalized with acute myocardial infarction: should we be analyzing cardiovascular outcomes data differently? Am Heart J (2003) 2.88
Deriving ethnic-specific BMI cutoff points for assessing diabetes risk. Diabetes Care (2011) 2.87
Visceral adipose tissue accumulation differs according to ethnic background: results of the Multicultural Community Health Assessment Trial (M-CHAT). Am J Clin Nutr (2007) 2.86
Impact of hospital nursing care on 30-day mortality for acute medical patients. J Adv Nurs (2007) 2.85
Use of fibrates in the United States and Canada. JAMA (2011) 2.82
Dealing with missing data in a multi-question depression scale: a comparison of imputation methods. BMC Med Res Methodol (2006) 2.81
Looking forward, looking back: assessing variations in hospital resource use and outcomes for elderly patients with heart failure. Circ Cardiovasc Qual Outcomes (2009) 2.80
From a national, centrally planned health system to a system based on the market: lessons from China. Health Aff (Millwood) (2008) 2.79
Prevalence, predictors, and outcomes of primary nonadherence after acute myocardial infarction. Circulation (2008) 2.76
Validation of a case definition to define hypertension using administrative data. Hypertension (2009) 2.74
Characteristics and outcomes of patients with acute myocardial infarction and angiographically normal coronary arteries. Am J Cardiol (2005) 2.69
Automated variable selection methods for logistic regression produced unstable models for predicting acute myocardial infarction mortality. J Clin Epidemiol (2004) 2.69
Quality of diagnosis and procedure coding in ICD-10 administrative data. Med Care (2006) 2.65
Frequency and predictive value of a mammographic recommendation for short-interval follow-up. J Natl Cancer Inst (2003) 2.64
Incidence of symptomatic venous thromboembolism after different elective or urgent surgical procedures. Thromb Haemost (2003) 2.62
Residency training at a crossroads: duty-hour standards 2010. Ann Intern Med (2010) 2.61
Association of temporal trends in risk factors and treatment uptake with coronary heart disease mortality, 1994-2005. JAMA (2010) 2.61
Care and outcomes of patients newly hospitalized for heart failure in the community treated by cardiologists compared with other specialists. Circulation (2003) 2.61
Polymorphisms in interleukin-15 gene on chromosome 4q31.2 are associated with psoriasis vulgaris in Chinese population. J Invest Dermatol (2007) 2.59
Identification of hepatitis C virus NS5A inhibitors. J Virol (2010) 2.58
Trends in elective knee arthroscopies in a population-based cohort, 2000-2009. Med J Aust (2012) 2.58
An observational study found that authors of randomized controlled trials frequently use concealment of randomization and blinding, despite the failure to report these methods. J Clin Epidemiol (2004) 2.58
Administrative Data Feedback for Effective Cardiac Treatment: AFFECT, a cluster randomized trial. JAMA (2005) 2.54
Nurse-patient ratios: a systematic review on the effects of nurse staffing on patient, nurse employee, and hospital outcomes. J Nurs Adm (2004) 2.54
Statins are associated with better outcomes after carotid endarterectomy in symptomatic patients. Stroke (2005) 2.50
Resistance analysis of the hepatitis C virus NS5A inhibitor BMS-790052 in an in vitro replicon system. Antimicrob Agents Chemother (2010) 2.50
Activation of the E3 ubiquitin ligase Itch through a phosphorylation-induced conformational change. Proc Natl Acad Sci U S A (2006) 2.49
Safety and efficacy of drug-eluting and bare metal stents: comprehensive meta-analysis of randomized trials and observational studies. Circulation (2009) 2.40
Progression to chronic atrial fibrillation after the initial diagnosis of paroxysmal atrial fibrillation: results from the Canadian Registry of Atrial Fibrillation. Am Heart J (2005) 2.39
A comprehensive view of sex-specific issues related to cardiovascular disease. CMAJ (2007) 2.35
Effects of resident duty hour reform on surgical and procedural patient safety indicators among hospitalized Veterans Health Administration and Medicare patients. Med Care (2009) 2.35
Changes in the rates of awareness, treatment and control of hypertension in Canada over the past two decades. CMAJ (2011) 2.34
The association among renal insufficiency, pharmacotherapy, and outcomes in 6,427 patients with heart failure and coronary artery disease. J Am Coll Cardiol (2004) 2.32
The use of the propensity score for estimating treatment effects: administrative versus clinical data. Stat Med (2005) 2.31
Effects of contemporary troponin assay sensitivity on the utility of the early markers myoglobin and CKMB isoforms in evaluating patients with possible acute myocardial infarction. Clin Chim Acta (2007) 2.31
Arthritis in Aboriginal Manitobans: evidence for a high burden of disease. J Rheumatol (2008) 2.31