title: [Frequency of menstrual disturbances in gynecology and obstetrics residents].
abstract: OBJECTIVE
  To determine the frequency of menstrual disorders in gynecology and obstetrics residents. MATERIAL AND MET HODS: All residents of the 2015-2016 academic cycle were studied. In all them the menstrual cycle characteristics such as: rhythm, duration and quantity were analyzed. For statistical analysis Mann Whitney U test and Spearman's correlation analysis were done.
  
  
  RESULTS
  61 residents, 18 of 2nd, 21 of 3rd and 22 of 4th year were studied. Body mass index was significantly greater in those of 4th grade when compared with those of 2nd. The waist hip ratio (WHR) was significantly smaller in those of 3rd when compared with those of 4th. The reported frequency of menstrual disturbances was 22.8%, 28.6% and 22.7% for the 2nd, 3rd and 4th years respectively. After comparing the groups, between them the total volume was greater in those of 2nd when compared with those of 3rd (p<0.009) and 4th (p<0.04) In the correlation analysis in those of 2nd grade the WHR negatively correlated with the duration of bled (p <0.483, p<0.049). In those of 3rd year the WHR positively correlated with the duration (p 0.544, p<0.024) and with the total volume (p 0.553, p<0.02 1). In those of 4th year any correlation was found.
  
  
  CONCLUSIONS
  The 2nd year residents women's are more likely to suffer menstrual disorders compared with those of 3rd and 4th ear of residence.
authors.forename: S
authors.initials: S
authors.lastname: Carranza-Lira
authors.forename: F A
authors.initials: FA
authors.lastname: Tostado-Loaiza
mesh_terms: D000328:Adult; D005260:Female; D006176:Gynecology / Q000193:education; D006801:Humans; D007396:Internship and Residency; D008599:Menstruation Disturbances / Q000453:epidemiology*; D009774:Obstetrics / Q000193:education