Observational studies versus RCTs: what about socioeconomic factors?

The Lancet

Volumn 373, Issue 9680, 2009, Pages 2026-

  Rosén, Måns ^a   Axelsson, Susanna ^a   Lindblom, Jonas ^a  

^a Swedish Council on Technology Assessment in Health Care   (Sweden)

Author keywords

[No Author keywords available]

Indexed keywords

SILDENAFIL;

EDUCATIONAL STATUS; ERECTILE DYSFUNCTION; HEALTH CARE ACCESS; HORMONE SUBSTITUTION; HUMAN; INTERMETHOD COMPARISON; ISCHEMIC HEART DISEASE; LETTER; OBSERVATIONAL STUDY; PRACTICE GUIDELINE; PRIORITY JOURNAL; QUALITY CONTROL; RANDOMIZED CONTROLLED TRIAL; SOCIOECONOMICS;

EID: 66649089731     PISSN: 01406736     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0140-6736(09)61112-0     Document Type: Letter

References (5)

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2. Weitoft G.R., Rosén M., Ericsson O., and Ljung R. Education and drug use in Sweden-a nationwide register-based study. Pharmacoepidemiol Drug Saf 17 (2008) 1020-1028
3. Haglund B., Köster M., and Rosén M. Inequality in access to coronary revascularisation in Sweden. Scand Cardivascular J 38 (2004) 334-339
4. Lawlor D.A., Smith G.D., and Ebrahim S. Socioeconomic position and hormone replacement therapy use: explaining the discrepancy in evidence from observational and randomized controlled trials. Am J Public Health 94 (2004) 2149-2154
5. von Elm E., Egger M., Altman D.G., Pocock S.J., and Vandenbroucke J.P. Strengthening the reporting of observational studies in epidemiology (STROBE) statement: guidelines for reporting observational studies. BMJ 335 (2007) 806-808