Table 3.

Association of stressful life events and menstrual irregularity, crude and adjusted relative risks and 95% confidence intervals

	Crude RR (95% CI)	All Women Adjusted* RR (95% CI)	Women with no recent hormonal contraceptive use** Adjusted* RR (95% CI)
Ever in foster care	0.99 (0.73, 1.34)	0.98 (0.72, 1.32)	0.99 (0.71, 1.38)
Had sex for drugs or money	1.11 (0.80, 1.55)	1.21 (0.82, 1.78)	1.25 (0.82, 1.90)
Feel safe where living	0.61 (0.37, 1.00)	0.59 (0.34, 1.02)	0.54 (0.32, 0.92)
In 3 months before admittance lived with someone with an alcohol or drug problem	1.25 (0.95, 1.64)	1.14 (0.85, 1.51)	1.05 (0.77, 1.43)
Parent alcohol/drug problem	1.39 (1.04, 1.86)	1.34 (1.00, 1.80)	1.34 (0.97, 1.81)
Parent incarcerated	1.13 (0.87, 1.48)	1.10 (0.83, 1.46)	1.05 (0.77, 1.43)
Age at first abuse(referent Never abused)
Childhood	1.56 (1.09, 2.25)	1.48 (1.03, 2.13)	1.40 (0.96, 2.05)
Adulthood	1.17 (0.71, 1.92)	1.07 (0.65, 1.76)	1.08 (0.65, 1.79)
Type of abuse (referent Never abused)
Any Sexual	1.57 (1.09, 2.27)	1.49 (1.03, 2.14)	1.39 (0.95, 2.05)
Physical only	1.28 (0.82, 1.98)	1.18 (0.77, 1.82)	1.19 (0.76, 1.85)

^*Characteristics adjusted for: age, race/ethnicity, smoking status and drug use in the last 90 days.

^**Women who reported any hormonal contraceptive use in the past 3 months were excluded