title: Menstrual problems and health-seeking behaviour in Hong Kong Chinese girls.
abstract: OBJECTIVE
  To ascertain the prevalence of menstrual problems in adolescent girls and their health-seeking behaviour.
  
  
  METHODS
  Questionnaire survey on menstruation, menstrual problems, medical consultation, and factors influencing girls seeking medical care.
  
  
  METHODS
  Secondary schools in the catchment area of a tertiary teaching hospital in Hong Kong.
  
  
  METHODS
  A total of 5609 girls from 10 secondary schools.
  
  
  METHODS
  Prevalence of menstrual problems and health-seeking behaviour of adolescent girls.
  
  
  RESULTS
  The mean age of the girls and their mean age at menarche were 15.1 (standard deviation, 2.0) years and 12.3 (1.1) years, respectively. The prevalence of menorrhagia, dysmenorrhoea, and menstrual symptoms were 17.9% (95% confidence interval, 16.9-19.1%), 68.7% (67.7-70.3%), and 37.7% (36.7-39.3%), respectively. The prevalence of menstrual symptoms (P<0.001) and dysmenorrhoea (P<0.001) increased with gynaecological age (calendar age minus age at menarche), whilst the proportion having short or long cycles decreased (P=0.002 and P=0.009). One in eight girls reported having been absent from school, whilst only 6.4% had sought medical care because of menses. Multivariate analysis indicated that seeking medical care for menorrhagia was dependent on the opinion of a family member (P=0.005), and for dysmenorrhoea on its severity (P=0.046) and anxiety about embarrassing questions (P=0.039).
  
  
  CONCLUSIONS
  The prevalence of menstrual problems in Hong Kong Chinese girls is high and causes significant disruption to their school and daily activities. However, only a minority seek medical advice.
authors.affiliation: Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong. symphorosa@cuhk.edu.hk
authors.forename: Symphorosa S C
authors.initials: SS
authors.lastname: Chan
authors.forename: K W
authors.initials: KW
authors.lastname: Yiu
authors.forename: P M
authors.initials: PM
authors.lastname: Yuen
authors.forename: D S
authors.initials: DS
authors.lastname: Sahota
authors.forename: Tony K H
authors.initials: TK
authors.lastname: Chung
mesh_terms: D000041:Absenteeism; D000293:Adolescent; D000294:Adolescent Behavior / Q000208:ethnology / Q000523:psychology*; D017668:Age of Onset; D000704:Analysis of Variance; D002648:Child; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006723:Hong Kong / Q000453:epidemiology; D006801:Humans; D008599:Menstruation Disturbances / Q000453:epidemiology / Q000208:ethnology / Q000523:psychology*; D010287:Parent-Child Relations; D010342:Patient Acceptance of Health Care / Q000208:ethnology / Q000523:psychology*; D015995:Prevalence; D012574:Schools; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D055815:Young Adult