An Evaluation of Electroacupuncture at the Weizhong Acupoint (BL-40) as a Means of Relieving Pain Induced by Extracorporeal Shock Wave Lithotripsy

Table 5

Pain scores for different upper urolithiasis groups.

VAS	U-I; control (𝑛=25)	U-II; sham-EA (𝑛=24)	U-III; 100 Hz EA (𝑛=25)	𝑃 value	Multiple comparison
1st pain score	3.00; (3.00–4.00)	3.00; (0.00–3.00)	0.00; (0.00–3.00)	0.0439*	I > III
Max pain score	4.00; (3.00–5.00)	3.00; (0.00–3.50)	0.00; (0.00–3.00)	0.009**	I > III
Controlled pain score	1.00; (0.00–2.00)	0.00; (0.00-0.00)	0.00; (0.00-0.00)	<0.001***	I > II, I > III

Median (25%–75%).
* 𝑃<0.05, **𝑃<0.01, and ***𝑃<0.001.