METHODS: We obtained random urine samples from 9,275 cases of acute first stroke and 9,726 matched controls from 27 countries and estimated the 24-hour sodium and potassium excretion, a surrogate for intake, using the Tanaka formula. Using multivariable conditional logistic regression, we determined the associations of estimated 24-hour urinary sodium and potassium excretion with stroke and its subtypes.
RESULTS: Compared with an estimated urinary sodium excretion of 2.8-3.5 g/day (reference), higher (>4.26 g/day) (odds ratio [OR] 1.81; 95% confidence interval [CI], 1.65-2.00) and lower (<2.8 g/day) sodium excretion (OR 1.39; 95% CI, 1.26-1.53) were significantly associated with increased risk of stroke. The stroke risk associated with the highest quartile of sodium intake (sodium excretion >4.26 g/day) was significantly greater (P < 0.001) for intracerebral hemorrhage (ICH) (OR 2.38; 95% CI, 1.93-2.92) than for ischemic stroke (OR 1.67; 95% CI, 1.50-1.87). Urinary potassium was inversely and linearly associated with risk of stroke, and stronger for ischemic stroke than ICH (P = 0.026). In an analysis of combined sodium and potassium excretion, the combination of high potassium intake (>1.58 g/day) and moderate sodium intake (2.8-3.5 g/day) was associated with the lowest risk of stroke.
CONCLUSIONS: The association of sodium intake and stroke is J-shaped, with high sodium intake a stronger risk factor for ICH than ischemic stroke. Our data suggest that moderate sodium intake-rather than low sodium intake-combined with high potassium intake may be associated with the lowest risk of stroke and expected to be a more feasible combined dietary target.
DESIGN: A required 2-credit-hour course was designed to provide an overview of public health pharmacy roles and the behavioral aspects of human healthcare issues. Graded activities included nursing home visits, in-class quizzes, mini-projects, and poster sessions, and a comprehensive final examination.
ASSESSMENT: The majority of the students performed well on the class activities and 93 (71.5%) of the 130 students enrolled received a grade of B or higher. A Web-based survey was administered at the end of the semester and 90% of students indicated that they had benefited from the course and were glad that it was offered. The majority of students agreed that the course made an impact in preparing them for their future role as pharmacists and expanded their understanding of the public health roles of a pharmacist.
CONCLUSIONS: A public health pharmacy course was successfully designed and implemented in the BPharm curriculum. This study highlighted the feasibilities of introducing courses that are of global relevance into a Malaysian pharmacy curriculum. The findings from the students' evaluation suggest the needs to incorporate a similar course in all pharmacy schools in the country and will be used as a guide to improve the contents and methods of delivery of the course at our school.