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Table 1 Socio-demographic characteristics and 1-year prevalence of headaches classified by gender

From: Prevalence of primary headache disorders among information technology staff in China: the negative effects of computer use and other correlative factors

 Total (n = 2012,%)Men (n = 1544, %)Women (n = 468, %)
Age(years)
 18–30702 (34.9)526 (34.1)176 (37.6)
 31–40718 (35.7)549 (35.6)169 (36.1)
 41–50385 (19.1)293 (19.0)92 (19.7)
 51–60207 (10.3)176 (11.3)31 (6.6)
Mean age (SD) years36.0 ± 9.236.1 ± 8.335.8 ± 9.0
Education
 Bachelor or lower1097 (54.5)830 (53.8)267 (57.1)
 Master or higher915 (45.5)714 (46.2)201 (42.9)
Marriage
 single611 (30.4)436 (28.2)175 (37.4)
 married1401 (69.6)1108 (71.8)293 (62.6)
Work experience (years)
 1–5888 (44.1)664 (43.0)224 (47.9)
 6–10681 (33.8)514 (33.3)167 (35.7)
 10-443 (22.1)366 (23.7)77 (16.4)
Headache, all types619 (30.8)396 (25.6)223 (47.7)
Migraine152 (7.6)81 (5.2)71 (15.2)
Migraine without aura107 (5.3)48 (3.1)59 (12.6)
Migraine with aura17 (0.8)13 (0.8)4 (0.9)
Probable migraine28 (1.4)20 (1.3)8 (1.7)
Chronic migraine000
TTH440 (21.9)297 (19.2)143 (30.6)
  infrequent episodic TTH233 (11.6)156 (10.1)77 (16.5)
  frequent episodic TTH117 (5.8)82 (5.3)35 (1.7)
  Probable TTH74 (3.7)51 (3.3)23 (4.9)
Chronic TTH12 (0.6)4 (0.2)8 (0.4)
aUnclassified headache27 (1.3)18 (1.2)9 (1.9)
  1. aUnclassified headache include 3.1 cluster headache (7 cases), 3.2 Paroxysmal hemicranias (5 cases), 4.2 Primary exercise headache (5 cases), 4.5 Cold-stimulus headache (8 cases) and 4.8 Nummular headache (2 cases)