Question
A study used the 1998 Behavioral Risk Factors Social Survey to consider factors associated with women's use of oral contraceptives in the US. The table
A study used the 1998 Behavioral Risk Factors Social Survey to consider factors associated with women's use of oral contraceptives in the US. The table below summarizes the estimates from a logistic regression model for the probability of using oral contraceptives.
Let Y=1 if a woman used oral contraceptives and 0 otherwise. Each predictor is a dichotomous variable, and the table lists the category of the predictor takes the value of 1 (the other category takes the value of 0). Further assume the sample size was sufficiently large to fit a logistic regression model with this many slopes.
Variable | Coding =1 if | Coefficient Estimate | Standard Error |
Age | 35 or younger | -1.320 | 0.087 |
Race | White | 0.622 | 0.098 |
Education | Graduate Degree | 0.501 | 0.077 |
Undergraduate Degree | 0.732 | 0.068 | |
High School or Less | Reference | - | |
Marital status | Married | -0.460 | 0.073 |
please construct and interpret a 95% confidence interval for the adjusted OR for contraceptive use comparing those who are aged 35 or younger to those who are over 35.
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