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Table 4 Adverse events reported by each trial are described

From: The effectiveness of manual and exercise therapy on headache intensity and frequency among patients with cervicogenic headache: a systematic review and meta-analysis

Study

Adverse events

Bodes-Pardo et al. [51]

Not reported

Chaibi et al. [52]

No severe or serious adverse effects

Dunning et al. [53]

No severe or serious adverse effects

Esin et al. [54]

Not reported

Haas et al. [55]

Not reported

Haas et al. [56]

No severe or serious adverse effects

Hall et al. [57]

Not reported

Jafari et al. [58]

Not reported

Jull et al. [59]

No severe or serious adverse effects. 6.7% of total headaches experienced by participants during the trial were reported to be caused by the treatment

Malo-Urriès et al. [60]

No severe or serious adverse effects

Nilsson et al. [61]

Not reported

Sedighi et al. [62]

Not reported

Sharma et al. [63]

Not reported

von Piekartz et al. [64]

No severe or serious adverse effects. 3 patients dropped out after the second follow up due to worsening of their symptoms

Yang and Kang [65]

Not reported

Youssef and Shanb [66]

Not reported

Abdel et al. [67]

Not reported

Dunning et al. [68]

No severe or serious adverse effects. 60% of participants in the dry needling group experienced localized soreness, and 24% localized ecchymosis, resolved withing 48 h. 4% experienced drowsiness or nausea, resolved within several hours

Lerner-Lentz et al. [69]

Not reported

Moustafa et al. [70]

No severe or serious adverse effects