Biases in the observational study of β blockers in COPD

Thorax

Volumn 63, Issue 11, 2008, Pages 1026-1027

  Suissa, S ^a   Ernst, P ^a  

^a MCGILL UNIVERSITY   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

BETA ADRENERGIC RECEPTOR BLOCKING AGENT; BETA ADRENERGIC RECEPTOR STIMULATING AGENT;

CHRONIC OBSTRUCTIVE LUNG DISEASE; DISEASE EXACERBATION; EXTERNAL BIAS; HOSPITALIZATION; LETTER; MORTALITY; OBSERVATIONAL STUDY; PRIORITY JOURNAL;

EID: 56049114894     PISSN: 00406376     EISSN: 14683296     Source Type: Journal    
DOI: None     Document Type: Letter

References (5)

1. Dransfield MT, Rowe SM, Johnson JE, et al. Use of beta blockers and the risk of death in hospitalised patients with acute exacerbations of COPD. Thorax 2008;63:301-5.
2. Suissa S. Immortal time bias in observational studies of drug effects. Pharmacoepidemiol Drug Saf 2007;16:241-9.
3. Suissa S. Immortal time bias in pharmacoepidemiology. Am J Epidemiol 2008;167:492-9.
4. Anthonisen NR, Connett JE, Enright PL, et al. Hospitalizations and mortality in the Lung Health Study. Am J Respir Crit Care Med 2002;166:333-9.
5. Camilli AE, Bobbins DR, Lebowitz MD. Death certificate reporting of confirmed airways obstructive disease. Am J Epidemiol 1991;133:795-800.