Effectiveness of an educational intervention on knowledge about anticoagulant therapy: a quasi-experimental study.
Monique Oliveira do Nascimento, Érica Laryssa Lemos Souza, Isabelle Francielle Bezerra Barbosa and 5 others
PMID 42524954WHAT IT FOUND
Patients on warfarin who received nurse-led Supported Self-Care by phone and messages raised their knowledge scores.
The study had no control group, so it cannot prove the intervention alone caused the gain.
Key findings
01Mean knowledge score increased by more than two points, from 5.24 to 7.74, after the nursing intervention.
02Knowledge categories shifted from insufficient and regular to regular and satisfactory.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
No control group, so the knowledge gain could reflect time, routine care, testing, or maturation. No random allocation and no blinding. Convenience sample from one cardiology hospital, with some patients excluded during follow-up. Only knowledge was measured; no INR control, adherence, bleeding, or thrombosis outcomes were reported.
Declared interests
The study was supported by CAPES and extracted from a nursing thesis.
The easy way to misread this
Do not conclude that nurse-led education improves INR control, adherence, or bleeding outcomes. The study measured knowledge only and had no control group, so the gain cannot be separated from time, testing, or routine care.