Erratum to: Combination of anxiety and depression is associated with an increased headache frequency in migraineurs: a population-based study

• Published in: BMC neurology Vol. 16; no. 1; p. 51
• Main Authors: Oh, Kyungmi, Cho, Soo-Jin, Chung, Yun Kyung, Kim, Jae-Moon, Chu, Min Kyung
• Format: Journal Article
• Language: English
• Published: England BioMed Central Ltd 19.04.2016; BioMed Central
• Subjects: Erratum
• ISSN: 1471-2377; 1471-2377
• DOI: 10.1186/s12883-016-0571-x

After publication of the original article [1], the authors noticed that the article contained some errors in the data presented within Table 1, Figs. 1 and 2, and Tables 2 and 3. Fig. 1 Flow chart depicting the participation of subjects in the Korean Headache-Sleep Study Fig. 2 Venn diagram for distribution of subjects with anxiety, depression and migraine Table 1 Sociodemographic distribution of all survey participants, the total Korean population, and of cases identified as migraine, anxiety and depression Survey participants N (%) Total population N (%) P Migraine N, % (95 % CI) Anxiety N, % (95 % CI) Depression N, % (95 % CI) Men 1345 (49.3) 17,584,365 (50.6) 0.854a 36, 2.7 (1.8-3.5) 109, 8.1 (6.6-9.6) 43, 3.2 (2.3-4.2) Women 1350 (50.7) 17,198,350 (49.4) 107, 7.9 (6.5-9.4) 159, 11.8 (10.1-13.5) 73, 5.4 (4.2-6.6) Age  19-29 542 (20.5) 7,717,947 (22.2) 0.917a 25, 4.5 (2.7-6.2) 53, 9.6 (7.2-12.1) 23, 4.1 (2.5-5.8)  30-39 604 (21.9) 8,349,487 (24.0) 42, 7.0 (4.9-9.1) 51, 8.7 (6.4-11.0) 32, 5.4 (4.6-7.3)  40-49 611 (23.1) 8,613,110 (24.8) 39, 6.5 (4.5-8.4) 67, 11.0 (8.5-13.5) 24, 4.0 (2.5-5.5)  50-59 529 (18.9) 6,167,505 (17.7) 22, 4.1 (2.4-5.9) 53, 9.9 (7.3-12.5) 22, 4.2 (2.5-6.0)  60-69 409 (15.6) 3,934,666 (11.3) 15, 3.9 (2.0-5.7) 14, 10.8 (7.8-13.8) 15, 3.7 (2.0-5.5) Size of residential area  Large city 1248 (46.3) 16,776,771 (48.2) 0.921a 76, 6.1 (4.8-7.5) 130, 10.4 (8.7-12.1) 57, 4.6 (3.4-5.7)  Medium-to-small city 1186 (44.0) 15,164,345 (43.6) 48, 4.0 (2.9-5.2) 112, 9.5 (7.8-11.2) 47, 4.0 (2.9-5.1)  Rural area 261 (9.7) 2,841,599 (8.2) 19, 7.4 (4.2-10.6) 26, 10.0 (6.3-13.6) 12, 4.7 (2.1-7.3) Education level  Middle school or less 393 (14.9) 6,608,716 (19.0) 0.752a 22, 5.5 (4.2-7.7) 55, 13.9 (10.5-17.4) 20, 5.2 (3.0-7.4)  High school 1208 (44.5) 15,234,829 (43.8) 60, 5.0 (3.8-6.3) 111, 9.2 (7.5-10.8) 49, 4.1 (3.0-5.2)  College or more 1068 (39.6) 12,939,170 (37.2) 60, 5.6 (4.3-7.0) 100, 9.5 (7.7-11.2) 47, 4.4 (3.2-5.7)  Not responded 26 (9.6) 1, 3.8 (0.0-11.8) 2, 8.0 (0.0-18.0) 0, 0.0 (0.0-0.0) Total 2695 (100.0) 34,782,715 (100.0) 143, 5.3 (4.5-6.2) 268, 10.0 (8.8-11.1) 116, 4.3 (3.6-5.1) aCompared gender, age group, size of residential area, and educational level distributions between the sample of the present study and total population of Korea Table 2 Demographics, headache characteristics and associated symptoms of migraineurs according to anxiety and depression Migraine subjects without anxiety or depression, N = 92 Migraine subjects with anxiety alone, N = 27 Migraine subjects with depression alone, N = 8 Migraine with anxiety and depression, N = 16 P-value Demographics  Mean age ± SD (years) 40.4 ± 11.4 47.2 ± 14.5 42.1 ± 15.7 44.5 ± 18.4 0.131  Women, N (%) 71 (75.5) 21 (77.8) 7 (77.8) 13 (76.5) 0.995 Headache characteristics  Unilateral pain, N (%) 57 (60.6) 15 (53.6) 4 (44.4) 7 (41.2) 0.409  Pulsating quality, N (%) 72 (76.6) 21 (77.8) 7 (77.8) 12 (70.6) 0.950  Moderate-to-severe severity, N (%) 72 (75.8) 22 (81.5) 8 (88.9) 17 (100.0) 0.119  Aggravation by movement, N (%) 60 (63.8) 21 (77.8) 5 (55.6) 15 (88.2) 0.121 Associated symptoms  Nausea, N (%) 84 (88.4) 23 (82.1) 9 (100.0) 15 (88.2) 0.544  Vomiting, N (%) 33 (34.7) 15 (53.6) 3 (33.3) 8 (47.1) 0.288  Photophobia, N (%) 55 (57.9) 19 (70.4) 1 (11.1) 11 (64.7) 0.017  Phonophobia, N (%) 63 (67.0) 21 (77.8) 6 (66.7) 13 (76.5) 0.668  Osmophobia, N (%) 42 (44.7) 13 (48.1) 4 (44.4) 9 (46.3) 0.930 Table 3 Frequency, severity and impact of headache according to migraineurs’ anxiety and depression status Migraine subjects without anxiety or depression, N = 92 Migraine subjects with anxiety alone, N = 27 Migraine subjects with depression alone, N = 8 Migraine subjects with anxiety and depression, N = 16 P-value* Post hoc analysis with Bonferroni’s correction Median (25 %-75 %) Median (25 %-75 %) Median (25 %-75 %) Median (25 %-75 %) Frequency per month 1.0 (0.3-3.0) 2.0 (1.0-5.0) 1.0 (0.3-4.0) 8.0 (2.5-21.0) <0.001 1 vs. 2 = 0.596 1 vs.3 = 1.000 1 vs. 4 < 0.001 2 vs.3 = 1.000 2 vs. 4 = 0.003 3 vs. 4 = 0.001 VAS score for pain intensity 6.0 (5.0-7.0) 7.0 (6.0-8.0) 7.0 (6.0-8.0) 7.0 (5.0-9.0) <0.001 1 vs. 2 = 0.011 1 vs.3 = 0.824 1 vs. 4 = 0.018 2 vs.3 = 1.000 2 vs. 4 = 1.000 3 vs. 4 = 1.000 HIT-6 score 50.0 (46.0-58.0) 57.0 (49.0-60.8) 62.0 (52.0-70.5) 64.0 (61.0-67.0) <0.001 1 vs. 2 = 0.074 1 vs.3 = 0.004 1 vs. 4 < 0.001 2 vs.3 = 0.545 2 vs. 4 = 0.005 3 vs. 4 = 1.000 HIT-6: Headache Impact Test-6; VAS: Visual Analogue Scale *Kruskal-Wallis one-way analysis of variance test among the four groups: migraine subjects without anxiety or depression, migraine subjects with anxiety alone, migraine subjects with depression alone and migraine subjects with anxiety and depression 1: migraine subjects without anxiety or depression; 2: migraine subjects with anxiety alone; 3: migraine subjects with depression alone; 4: migraine with anxiety and depression The corrected versions are given in this erratum. The main findings of the original article are not affected after this correction. The authors apologise for any inconvenience this has caused.