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Table 2 Crude (observed) prevalences of all headache and each headache type, overall and according to demographic variables, and gender- and age-adjusted prevalences (N = 2505)

From: The prevalence of headache disorders in children and adolescents in Lithuania: a schools-based study

 All headache (n = 1858)Migraine (n = 519)TTH (n = 605)pMOH (n = 18)Other headache on ≥ 15 d/m (n = 73)UdH (n = 601)
Observed prevalences (% [95% CI])
 Overall74.2 [72.5–75.9]20.7 [19.1–22.3]24.2 [22.5–25.9]0.7 [0.4–1.0]2.9 [2.2–3.6]24.0 [22.3–25.7]
 Gender
  male (n = 1169)67.8 [65.1–70.5]18.6 [16.4–20.8]22.3 [19.9–24.7]0.2 [0.0–0.5]1.5 [0.8–2.2]24.0 [21.7–26.3]
  female (n = 1336)79.7 [77.5–81.9]22.5 [20.3–24.7]25.8 [23.5–28.1]1.2 [0.6–1.8]4.2 [3.1–5.3]24.0 [21.6–26.5]
 Age group (years)
  7–11 (n = 1382)62.7 [60.2–65.2]17.9 [15.9–19.9]17.5 [15.5–19.5]0.3 [0.0–0.6]1.3 [0.7–1.9]23.8 [21.6–26.1]
  12–17 (n = 1123)88.3 [86.4–90.2]24.2 [21.7–26.7]32.3 [29.6–35.0]1.3 [0.6–2.0]4.9 [3.6–6.2]24.2 [21.7–26.7]
 School income category*
  high (n = 1828)75.6 [73.6–77.6]21.8 [19.9–23.7]25.7 [23.7–27.7]0.7 [0.3–1.1]3.1 [2.3–3.9]22.5 [20.6–24.4]
  middle (n = 168)61.9 [54.6–69.2]20.8 [14.7–26.9]16.1 [10.5–21.7]0.6 [0.0–1.8]1.2 [0.0–2.8]22.0 [15.7–28.3]
  low (n = 509)73.1 [69.2–77.0]16.9 [13.6–20.2]21.4 [17.8–25.0]0.8 [0.0–1.6]2.9 [1.4–4.4]29.9 [25.9–33.9]
 School locality
  urban (n = 1660)73.3 [71.2–75.4]21.6 [19.6–23.6]24.8 [22.7–26.9]0.7 [0.3–1.1]2.5 [1.7–3.3]22.0 [20.0–24.0]
  semi-rural (n = 336)79.5 [75.2–83.8]22.3 [17.8–26.8]25.3 [20.7–29.9]0.9 [0.0–1.9]4.8 [2.5–7.1]24.7 [20.1–29.3]
  rural (n = 509)73.1 [69.2–77.0]16.9 [13.6–20.2]21.4 [17.8–25.0]0.8 [0.0–1.6]2.9 [1.4–4.4]29.9 [25.9–33.9]
Gender and age-adjusted prevalences (% [95% CI])
 Overall76.6 [74.9–78.3]21.4 [19.8–23.0]25.6 [23.9–27.3]0.8 [0.5–1.2]3.1 [2.4–3.8]24.0 [22.3–25.7]
  1. TTH tension-type headache, pMOH probable medication-overuse headache, d/m days/month, UdH undifferentiated headache, CI confidence interval; * see text or Table 1 for explanation. Tables 3 and 4 provide odds ratios and adjusted odds ratios for these comparisons
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