Table 3.

 Quality assessment of included cohort studies on hormone replacement therapy that reported venous thromboembolism

Reference	Appropriate method of participant selection	First episode of venous thromboembolism	Objective diagnostic procedure	Adequate assessment of menopausal status	Accurate assessment of hormone replacement therapy*	Overall low loss of follow-up	Adequate analysis and adjustment	Score (0-7)
Nurses’ health study 1996w4	Yes	Yes	Yes	Yes	Yes	Yes	Yes	7

Yes=1; n=0.

*Including route of oestrogen administration.