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Table 4 Multiple logistic regression estimates of ARB and ACE inhibitor mono-therapy prescription characteristics for newly-diagnosed uncomplicated hypertension patients, 1998–2004*

From: Antihypertensive medication prescription patterns and time trends for newly-diagnosed uncomplicated hypertension patients in Taiwan

Variables ARBs ACE inhibitors
  OR 95% CI OR 95% CI
Patient gender     
   Female (reference) 1.00 - 1.00 -
   Male 0.99 0.94–1.05 1.07 1.03–1.11
Patient age (years)     
   30–54 (reference) 1.00 - 1.00 -
   ≥55 0.74 0.70–0.78 0.75 0.72–0.78
Geographical region     
   Northwest (reference) 1.00 - 1.00 -
   Midwest 0.74 0.68–0.80 0.98 0.93–1.02
   Southwest 0.67 0.62–0.72 0.86 0.82–0.90
   Eastern 1.34 1.19–1.52 1.39 1.29–1.49
   Offshore islands 2.78 2.21–3.49 0.45 0.35–0.57
Type of clinical facility     
   Primary care clinics (reference) 1.00 - 1.00 -
   Local hospitals 2.17 1.98–2.38 0.43 0.41–0.45
   Regional hospitals 3.55 3.26–3.87 0.52 0.49–0.55
   Medical centers 5.77 5.32–6.25 0.63 0.60–0.66
Time elapsed since initial therapy     
   1 year or less (reference) 1.00 - 1.00 -
   2–3 years 1.00 0.92–1.09 0.93 0.89–0.97
   4–7 years 1.12 1.03–1.21 0.95 0.90–1.00
Comorbidity after hypertension     
   Diabetes mellitus 1.55 1.42–1.68 1.36 1.28–1.44
   Ischemic heart disease 1.10 1.02–1.19 0.78 0.73–0.82
   Stroke 1.02 0.93–1.11 0.98 0.91–1.05
   Chronic renal disease 1.07 0.94–1.22 0.92 0.83–1.02
Calendar years     
   1998–2000 (reference) 1.00 - 1.00 -
   2001–2002 2.35 2.12–2.62 0.87 0.83–0.91
   2003–2004 4.45 4.01–4.94 0.79 0.75–0.83
  1. Notes:
  2. * The odds ratio (OR) for each variable was adjusted for all other variables listed in the table.
  3. The reference group is subjects with no corresponding comorbidity for each category after hypertension.