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Table 3 Odds ratios and 95% confidence intervals for current MHT use in the pooling regression model

From: Differences in Menopausal Hormone Therapy Use among Women in Germany between 1998 and 2003

  β p-value Odds ratios and 95% confidence intervals
Age, years    
   40–49 -1.767 < 0.001 0.17 (0.13–0.22)
   50–59    1(Reference)
   60–69 -0.392 < 0.001 0.68(0.54–0.85)
   70–79 -2.099 < 0.001 0.12(0.09–0.17)
Region    
   West Germany 0.540 < 0.001 1.72(1.34–2.20)
   East Germany    1(Reference)
Smoking status    
   Smoker    1(Reference)
   Ex smoker -0.071 0.643 0.93(0.69–1.26)
   Non-smoker -0.074 0.560 0.93(0.73–1.19)
Physical activity    
   0 hrs/wk    1(Reference)
   0–1 hrs/wk 0.218 0.154 1.24(0.92–1.68)
   1–2 hrs/wk 0.151 0.241 1.16(0.90–1.50)
   > 2 hrs/wk 0.275 0.039 1.32(1.01–1.71)
Pre-existing medical conditions (yes vs. no)    
Diabetes -0.808 0.001 0.45(0.27–0.73)
Hypertension 0.099 0.364 1.10(0.89–1.37)
Hyperlipidemia 0.080 0.436 1.08(0.89–1.33)
CVD 0.012 0.937 1.01(0.75–1.38)
BMI, kg/m 2 -0.052 < 0.001 0.95(0.93–0.97)
Social-status index 0.057 0.001 1.06(1.03–1.09)
Survey period #    
   1997–1999    1(Reference)
   2003–2004 0.556 0.076 1.74(0.94–3.22)
Social-status index * survey period -0.107 < 0.001 0.90(0.86–0.94)
  1. Odds ratios (OR) and 95% confidence intervals were obtained from multivariable regression models based on pooled data from both surveys with current MHT as the dependent variable and survey period as the main independent variable of interest. Co-variables included all other variables as shown above.
  2. #: The OR for the survey period 2003–2004 vs. 1997–1999 is dependent on social-status index and is given by exp (0.556-social-status index*0.107) because of the significant interaction of social-status index with survey period. For example, given a low social-status index of 5, the OR for survey period 2003–2004 vs. 1997–1999 would be calculated to exp (0.556-5*0.107) = 1.02.
  3. MHT = menopausal hormone therapy; CVD = cardiovascular disease; hr(s)/wk = hour(s)/week, BMI = Body mass index