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Fig. 2 | Sleep Science and Practice

Fig. 2

From: Clinical application of headache impact test (HIT)-6 and epworth sleepiness scale (ESS) for sleep apnea headache

Fig. 2

N3 ratio (A), ESS (B), and AHI (C) among patients with no headache, relatively mild headache (HIT-6 ≤ 55), and relatively severe headache (HIT-6 > 55). Kruskal-Wallis analysis of variance and Tukey-Kramer post hoc test were performed to compare each group.( *p < 0.05 and **p < 0.01). The results of Kruskal-Wallis test were shown as follows; chi-square = 9.41, df = 2, p = 0.009 for N3 ratio (A), chi-square = 8.53, df = 2, p = 0.014 for ESS (B), and chi-square = 2.38, df = 2, p = 0.30 for AHI (C).

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Sleep Science and Practice

ISSN: 2398-2683

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