Using total quality management approach to improve patient safety by preventing medication error incidences**

Table 12 Pareto table

Cause of medication error	Score	Percent	Cumulative percent
Prescribing behavior of physicians	81	59.6	59.6
Verbal order	14	10.3	69.9
Understaffing	14	10.3	80.1
Lack of information on the patient	11	8.1	88.2
New staff	9	6.6	94.9
Lack of knowledge on the medication	7	5.1	100
Total	136	100

Causes of medication error related prescribing phase after groping the causes related to prescribing behavior of physicians (poor handwriting orders, unapproved abbreviations, metric & apothecary systems and unnecessary decimal points) (N = 318)

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