Table 3. Types of Adverse Events (AEs) reported in 7629 treatments with trigger point dry needling (TrP-DN).

Event	Cases reported	Number per 100 treatments	Number (%) of physiotherapists reporting none	Extreme values recorded by individual practitioners per 100 treatments
Bleeding	576	7.55	4 (10.25)	32.23, 30
Bruising	355	4.65	3 (7.69)	26.09, 21.84
Pain during treatment	230	3.01	9 (23.08)	20.75, 20.69
Pain after treatment	167	2.19	14 (35.9)	20.69, 18.4
Aggravation	67	0.88	22 (56.41)	10.99, 5.75
Drowsiness	20	0.26	32 (82.05)	4.44, 3.26
Feeling faint	17	0.22	28 (71.79)	4.17, 2.5
Headache	11	0.14	31 (79.49)	1.15, 1.1
Nausea	10	0.13	31 (79.49)	2.7, 2.22
Fatigue	3	0.04	37 (94.87)	1.77,.27
Emotional	3	0.04	37 (94.87)	1.59,.27
Shaky	1	0.01	38 (97.44)	3.03
Itching	1	0.01	38 (97.44)	0.47
Claustrophobia	1	0.01	38 (97.44)	0.16
Numbness	1	0.01	38 (97.44)	0.47