Table 1.

The number and appropriate rate of different subjects.

Study subjects	Overall	Medicine	Surgery	Gynecology & obstetrics	Pediatrics
Request forms	24386	8722	15208	318	69
	69.10%	82.90%	61.12%	78.61%	100%
Units of RBCs	39873	13084	20086	4560	2143
	75.64%	90.35%	63.14%	81.40%	90.76%
Transfusion cases	24153	7400	13796	2315	642
	68.85%	84.27%	60.09%	73.69%	87.07%
P value	<0.001	<0.001	<0.001	<0.001	<0.001

Notes: P values were acquired by performing comparisons between three groups in the same column. Then we also calculated P values between any two groups in the same column and the difference is significant unless noted otherwise. The overall appropriate rate between request forms and transfusion cases, P = 0.556 was obtained. P = 0.075 was obtained by comparing the statistics between request forms and transfusion cases in the surgery department. In the departments of gynecology and obstetrics, P = 0.060 was obtained by comparing the appropriateness of transfusion cases and blood request forms; P = 0.219 was obtained by comparing the appropriateness between application forms and RBCs units.