Table 4.

Frequency and percentage of specific acupoints used for POI.

Specific acupoints	Frequency	Percentage	Acupoint number	Acupoints (frequency)
Lower He-Sea point	99	0.44	4	ST36 (50), ST37 (31), ST39 (16), GB34 (2)
Five Shu points	74	0.33	11	ST36 (50), SP9 (7), LI11 (5), LR3 (3), GB34 (2), SJ6 (2), KI3 (1), LU5 (1), LU9 (1), ST41 (1), ST44 (1)
Crossing point	37	0.17	7	SP6 (19), RN12 (10), DU20 (3), RN4 (2), KI6 (1), RN10 (1), RN13 (1)
Luo-connecting point	32	0.14	5	PC6 (21), SP4 (7), LU7 (2), LR5 (1), ST40 (1)
Eight confluent point	31	0.14	4	PC6 (21), SP4 (7), LU7 (2), KI6 (1)
Front Mu point	28	0.13	4	ST25 (15), RN12 (10), RN4 (2), RN17 (1)
Yuan-primary point	18	0.08	4	LI4 (13), LR3 (3), KI3 (1), LU9 (1)
Eight influential point	14	0.06	4	RN12 (10), GB34 (2), LU9 (1), RN17 (1)