Please note: In 2003, the CTF updated its Grades of Recommendations to include an "I Recommendation" for situations where insufficient evidence exists to allow a recommendation to be made. (Formerly, these situations were captured under a "C Recommendation".) This change is not retroactive, and all "C Recommendations" made prior to 2003 have not been reevaluated in light of the new "I" recommendation grade. For a discussion of these recommendation grades, please link to the 2003 article in the Canadian Medical Association Journal here.
*Please note:
Evidence from recently published studies has not yet been reviewed by the
Task Force in terms of its potential effect on these recommendations.
| MANEUVER | EFFECTIVENESS | LEVEL OF EVIDENCE <REF> | RECOMMENDATION |
| Routine prenatal care with blood pressure measurement. | Early detection and non-specific preventive treatment is beneficial to the mother and fetus. | Cohort studies <16,17,21> (II-2) and expert opinion <1,6,19,20> (III) | There is fair evidence to recommend screening for preeclampsia in the periodic examination of all pregnant women. (B) |
| Low-dose (60-150 mg per day) aspirin in nulliparous women with/without risk factors of preeclampsia. | Low-dose aspirin reduces incidence of preeclampsia and intra-uterine growth retardation but has been associated with increased risks of complications in some studies without impact on neonatal mortality and morbidity. | Randomized controlled trials <7-9,15> (I) | There is insufficient evidence to recommend for or against low-dose aspirin in women with/without risk factors of preeclampsia. (C) |
Link to Full Text of this review
Link to Structured Abstract of this review
Link to Selected References list of this review
Reprinted in modified format by the Canadian
Task Force on Preventive Health Care
with permission.
Original Copyright
© 1994 Minister of Supply and Services Canada.
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Last modified March 27, 1998.
