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. Author manuscript; available in PMC: 2019 Jun 20.
Published in final edited form as: J Sex Res. 2007 Feb;44(1):3–16. doi: 10.1080/00224490709336788

Table 5.

Logistic Regression Models of Uninterrupted Contraceptive Use Among Those Who Used a Method in Two or More Months (Weighted)

Variable Model 1 Model 2

Most effective method used in first relationship
 Hormonal method 1.64 1.29
 Condom (ref.) (1.00) (1.00)
 Other 1.40 1.28
Ever used dual methods 1.21 1.32
Switched method between first method and last method 1.40
Method switching (first to last)
 Increase effectiveness 3.12**
 Decrease effectiveness 0.37*
 Did not switch methods (ref.) (1.00)
F F(23, 135) = 2.96*** F(24, 148) = 3.23***
N = 644 644

Note. Although not shown, the model included all other covariates shown in Table 4.

*

p < .05.

**

p < .01.

***

p < .001.