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Life stresses are known to result in menstrual irregularity. Investigators sought to determine whether a 16-day war in 1996, when parts of Lebanon were subjected to shelling and bombardment, affected menstrual cycles.
Six months after the war ended, 102 women who stayed in the war zone for 3 to 16 days (group A), 325 women who left the war zone within 1 to 2 days (group B), and 234 women living outside the war zone (group C) completed a questionnaire about their menstrual cycles. Only women with regular menstrual cycles when the war started were included in the analysis.
In group A, 35% of the women reported menstrual irregularities 3 months after the hostilities began, compared with 10.5% of women in group B and 2.6% in group C; irregularitiā¦