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Table 4 Adjusted odds ratios with 95% CIs of inappropriate long-term benzodiazepines use, 2013

From: Trends in the prescription of benzodiazepines for the elderly in Korea

Characteristics DDDs User-days
Adjusted Odds ratio (95% CIs) p value Adjusted Odds ratio (95% CIs) p value
Age group (per 10 years) 0.995 (0.994, 0.996) <.001 1.006 (1.005, 1.007) <.001
Sex Male 1.366 (1.345, 1.389) <.001 1.137 (1.125, 1.148) <.001
Female 1.000 Ref.   1.000 Ref.  
Type of Insurance NHI 1.000 Ref.   1.000 Ref.  
Medical Aid 1.398 (1.367, 1.431) <.001 1.178 (1.160, 1.195) <.001
No. of utilization of institutions 1 1.000 Ref.   1.000 Ref.  
2 1.555 (1.526, 1.584) <.001 1.54 (1.523, 1.557) <.001
3 1.888 (1.843, 1.933) <.001 1.888 (1.858, 1.918) <.001
4 2.239 (2.165, 2.315) <.001 2.265 (2.210, 2.322) <.001
5+ 2.966 (2.850, 3.087) <.001 3.199 (3.095, 3.306) <.001
At least one prescription w/ + 30 days No 1.000 Ref.   1.000 Ref.  
Yes 3.368 (3.314, 3.423) <.001 8.237 (8.156, 8.318) <.001
At least one prescription for psychiatric disorders No 1.000 Ref.   1.000 Ref.  
Yes 7.050 (6.925, 7.177) <.001 2.946 (2.917, 2.976) <.001
  1. NHI National Health Insurance, CI Confidence Intervals