Table 3.

Prevalence Ratio (PR) and 95% Confidence Interval (CI) for the Association¹ between Stress Intensity of Major Life Events (MLE) in the Past 12 Months and Fibroid Status, Uterine Fibroid Study, 1996–1999.

Stress Intensity of MLE	Model 1 PR (95% CI)	Model 2 PR (95% CI)	Model 3 PR (95% CI)	Model 4 PR (95% CI)
Black Women	N=510	N=503	N=449	N=494
Low	1.0 (0.9, 1.2)	1.1 (0.9, 1.2)	1.0 (0.9, 1.2)	1.1 (0.9, 1.3)
Medium	1.1 (1.0, 1.3)	1.1 (1.0, 1.3)	1.1 (0.9, 1.3)	1.1 (1.0, 1.4)
High	1.2 (1.0, 1.4)	1.2 (1.0, 1.4)	1.1 (1.0, 1.4)	1.2 (1.0, 1.4)
P-value 2	0.08	0.06	0.25	0.04
White Women	N=357	N=355	N=339	N=353
Low	1.8 (1.2, 2.5)	1.8 (1.3, 2.5)	1.8 (1.3, 2.6)	1.7 (1.2, 2.4)
Medium	1.7 (1.2, 2.4)	1.8 (1.2, 2.5)	1.8 (1.2, 2.5)	1.7 (1.2, 2.4)
High	1.5 (1.1, 2.2)	1.5 (1.1, 2.2)	1.5 (1.0, 2.2)	1.5 (1.0, 2.1)
P-value 2	0.01	0.01	0.01	0.01

¹Reference group = No events

²Based on Wald Test for Type 3 GEE Analysis, two-sided

Model 1: Adjusted for age at fibroid diagnosis

Model 2: Model 1 adjusted for age at menarche, BMI, physical activity without chores, No. of Full Term Pregnancies after Age 24

Model 3: Model 2 excluding 16 white women and 54 black women with severe fibroid related symptoms

Model 4: Model 2 adjusted for education, income, and occupational status