Factors Affecting INR Values in Warfarin Users, Benchalak Chaloem Phrakiat 80th Pansa hospital.

Abstract

This descriptive research aimed to study predictive factors affecting INR values in warfarin users, Benchalak
Chaloem Phrakiat 80th Pansa hospital Sisaket. All of 95 participants who visited warfarin clinic were recruited into the
study. Data were collected using questionnaires. Internal consistency reliability for each questionnaires tested by
Cronbach’s alpha were .75, .82 and.97 respectively. Data was analyzed using descriptive statistics and Multinomial
logistic regression analysis.
The results showed that knowledge, attitude and self-care behavior was high (100%). Self-care behavior of
patients with INR 2 - 3 was 22 times better than patients with INR > 3 and had significant level of .05. Dosage
adjustments were applied to patients with INR 2 -3 was 15 times more than patients with INR < 2 and had significant
level of .05. Recommendations are 1) Pharmacists should focus on monitoring patient behavior. 2 Be aware of
patients who are taking warfarin early, because patients tend to have high INR levels. 3) Supervise and monitor drug
exposure of the elderly, because as you get older, your need for warfarin decreases. . Development opportunity is
identify a development model and measure it and use the results obtained to further the patient care process.