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Table 6 The total amount of treatment-related adverse events

From: Transcranial bright light treatment via the ear canals in seasonal affective disorder: a randomized, double-blind dose-response study

Adverse event Total emergence Amount in group1 Amount in group2 Amount in group3 p
Headache 9 4 3 2 ns
Insomnia 5 2 1 2 ns
Nausea 3 2 0 1 ns
Dizziness 2 0 1 1 ns
Tinnitus 2 1 0 1 ns
Tiredness 2 1 1 0 ns
Earache 3 0 1 2 ns
Irritation 1 0 1 0 ns
Abnormal sensation in the maxillary region 1 0 0 1 ns
Irregular heart beat 1 1 0 0 ns
Total 29 11 8 10 ns