Oral contraceptive switching patterns in the United Kingdom: An important potential confounding variable in studies of venous thromboembolism

European Journal of Contraception and Reproductive Health Care

Volumn 1, Issue 1, 1996, Pages 31-37

  Farmer, R D T ^a   Lawrenson, R A ^a   Hambleton, I R ^a  

^a CHELSEA AND WESTMINSTER HOSPITAL   (United Kingdom)

Author keywords

Oral contraceptives; Prescribing; Switching; United Kingdom; Venous thromboembolism

Indexed keywords

ORAL CONTRACEPTIVE AGENT;

ADOLESCENT; ADULT; ARTICLE; CHEMICALLY INDUCED DISORDER; CHEMISTRY; CLINICAL PRACTICE; DECISION MAKING; DRUG UTILIZATION; EPIDEMIOLOGY; FEMALE; HUMAN; MIDDLE AGED; PATIENT SELECTION; PRESCRIPTION; RETROSPECTIVE STUDY; RISK FACTOR; STATISTICS; THROMBOEMBOLISM; UNITED KINGDOM;

ADOLESCENT; ADULT; BIAS (EPIDEMIOLOGY); CHOICE BEHAVIOR; CONFOUNDING FACTORS (EPIDEMIOLOGY); CONTRACEPTIVES, ORAL; DRUG UTILIZATION; FEMALE; GREAT BRITAIN; HEALTHY WORKER EFFECT; HUMANS; MIDDLE AGED; PATIENT SELECTION; PHYSICIAN'S PRACTICE PATTERNS; PRESCRIPTIONS, DRUG; RETROSPECTIVE STUDIES; RISK FACTORS; THROMBOEMBOLISM;

EID: 0030088879     PISSN: 13625187     EISSN: None     Source Type: Journal    
DOI: 10.3109/13625189609150653     Document Type: Article

References (12)

1. World Health Organization Collaborative Study of Cardiovascular Disease and Steroid Hormone Contraception. Effect of different progestogens in low oestrogen oral contraceptives on venous thromboembolic disease. Lancet 1995; 346: 1582-8
2. Jick H, Jick SS, Gurewich V, et al. Risk of idiopathic cardiovascular death and nonfatal venous thromboembolism in women using oral contraceptives with different progestogen components. Lancet 1995; 346: 1589-93
3. Spitzer WO, Lewis MA, Heinemann LAJ, et al.on behalf of the Transnational Research Group of Oral Contraceptives and the Health of Young Women. Third generation oral contraceptives and risk of venous thromboembolic disorders: an international case-control study. Br Med J 1996; 312: 83-8
4. Bloemenkamp KWM, Rosendaal FR, Helmerhorst FM, et al. Enhancement by factor V Leiden mutation of risk of deep-vein thrombosis associated with oral contraceptives containing a third-generation progestogen. Lancet 1995; 346: 1593-6
5. Farmer R. Safety of modern oral contraceptives. Lancet 1996; 347: 259
6. Farmer RDT, Lawrenson R. Utilisation patterns of oral contraceptives in UK general practice. Contraception 1996; in press
7. Watt AH. Oral contraceptives and venous thromboembolism. Lancet 1995; 346: 1430-1
8. MacRae K, Kay C. Third generation oral contraceptive pills. Br Med J 1995; 311: 1112
9. Clinical and Scientific Committee of the Faculty of Family Planning & Reproductive Health Care. Risk of venous thromboembolism and the combined oral contraceptive pill. Statement prepared at the request of the Board of the Faculty of Family Planning & Reproductive Health Care of the Royal College of Obstetricians and Gynaecologists, 15 December 1995
10. Johannisson E, for the International Committee for Research in Reproduction. Safety of modern oral contraceptives. Lancet 1996; 347: 258
11. Arrighi HM, Hertz-Picciotto I. The evolving concept of the healthy worker survivor effect. Epidemiology 1994; 5: 189-96
12. Oddens DJ, Arnolds HT, Maris MGM van, et al. The dynamics of oral contraceptive use in the Netherlands 1990-1993. Adv Contracept 1994; 10: 167-74