Needle-Free Electroacupuncture for Postoperative Pain Management

Table 8

Total PCA demanded and delivered (in mg).

Group	Total PCA doses given for the four groups over 24-hour period postoperatively
	Times delivered 24 hr	Times demand 24 hr	Dosage delivered 24 hr
1	29.16±11.79	84.54±38.66	38.63±11.08
2	31.82±11.98	74.18±39.33	34.20±6.40
3	27.75±11.78	52.17±21.87	31.14±8.15
4	23.30±11.93	41.60±36.47	29.29±8.89^∧

^∧𝑃<.05.