Abstract
Dispensing error risk rate (D) tended to rise immediately after acceptance of interns and then decreased gradually thereafter. The period (days) of experience of pharmacists in dispensing was represented by Td (eg, Td=1 stands for November 1, 1967), and the period (days) of training of interns by Ti (eg, Ti=1 stands for the day of acceptance of interns). D showed highly reciprocal relationship with Ti in the presence of interns, and with Td even in the absence of interns. Therefore, dispensing training is one of the erroreliminating factors. On the basis of unusual data which stood outside of the 95% confidence limit of the regression line, it was found that the errors decreased on the last working day of the year and increased in medication for the year-end and New Year vacation. The regression coefficient in the presence of interns was about 3 times as high as the coefficient in the absence of interns.
