Table 1 Demographic characteristics of outpatients diagnosed with migraine
| Â | 2018 | 2019 | 2020 | 2021 | 2022 | Total | P1 | P2 |
|---|---|---|---|---|---|---|---|---|
Outpatient visits | 6217 | 6766 | 5418 | 6748 | 7097 | 32,246 | 0.462 | – |
Age (years) | Â | Â | Â | Â | Â | Â | Â | Â |
 <30 | 1036 (16.66) | 1037 (15.33) | 896 (16.54) | 1204 (17.84) | 1244 (17.53) | 5417 (16.80) | 0.221 | 0.003 |
 30–39 | 1191 (19.16) | 1340 (19.80) | 1224 (22.59) | 1601 (23.73) | 1630 (22.97) | 6986 (21.66) | 0.086 | <  0.001 |
 40–49 | 1295 (20.83) | 1290 (19.07) | 1021 (18.84) | 1275 (18.89) | 1345 (18.95) | 6226 (19.31) | 1.000 | 0.014 |
 50–59 | 1175 (18.90) | 1318 (19.48) | 1016 (18.75) | 1202 (17.81) | 1285 (18.11) | 5996 (18.59) | 0.807 | 0.029 |
 60–69 | 840 (13.51) | 1027 (15.18) | 719 (13.27) | 848 (12.57) | 905 (12.75) | 4339 (13.46) | 0.807 | 0.001 |
  ≥ 70 | 647 (10.41) | 709 (10.48) | 504 (9.30) | 564 (8.36) | 619 (8.72) | 3043 (9.44) | 0.807 | <  0.001 |
sex | Â | Â | Â | Â | Â | Â | Â | Â |
 male | 1912 (30.75) | 2006 (29.65) | 1603 (29.59) | 1892 (28.04) | 1890 (26.63) | 9303 (28.85) | 0.462 | <  0.001 |
 female | 4021 (64.68) | 4511 (66.67) | 3575 (65.98) | 4551 (67.44) | 4950 (69.75) | 21,608 (67.01) | 0.221 | <  0.001 |