The first (or menstrual) and fourth (or premenstrual) week of the mens
trual cycle may be associated with many suicide attempts in women. The
study sample included 113 Spanish women Luke attempted suicide and co
ntacted an emergency service. Inclusion criteria were as follows: fert
ility; regular menstrual cycles: lack of oral contraceptives: and will
ingness to see a psychiatrist. The incidence of suicide attempts in th
e first week 136%) was significantly higher than that in the remaining
weeks (second week, 19%; third week 16%: fourth week. 29%), A corresp
ondence analysis suggested that suicide attempts were associated with
differences in demographics and clinical profiles. In particular, suic
ide attempts in the third week were correlated with a severe history o
f psychiatric problems and a lower level of education. The limitations
of this study are its exclusiveness to hospitalized cases and its use
of patient reports to date menstruation.