Table 3 Linear regression model for age of rheumatoid arthritis
Unstandardized coefficients | Standardized coefficients | P value | ||
|---|---|---|---|---|
B | Std. Error | Beta | ||
(Constant) | 26.888 | 7.848 | 0.001 | |
Use Contraceptive Drug | -2.243 | 1.635 | − 0.068 | 0.171 |
Smoke Cigarette | 0.074 | 2.733 | 0.001 | 0.978 |
Marital Status | 3.664 | 1.764 | 0.100 | 0.039 |
Years of Education | -1.012 | 0.311 | − 0.185 | 0.001 |
Pregnancy Number | 0.066 | 0.720 | 0.014 | 0.927 |
Alive Childbirth Number | 1.547 | 0.844 | 0.285 | 0.068 |
Breast feeding Duration | 0.005 | 0.017 | 0.019 | 0.775 |
Physical activity | − 0.041 | 0.089 | − 0.021 | 0.648 |