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. 2002 Feb;53(2):183–188. doi: 10.1046/j.0306-5251.2001.01190.x

Table 1.

Characteristics of contraindicated prescriptions before admission and after discharge.

Before admission After discharge 95% CI of the difference
Aspirin (n = 34)
 Mean duration of 1 prescription (days) 75.0 55.6 5.4, 33.4
 Mean duration of prescriptions (days) 66.5 67.0 −10.5, 9.5
 Mean PDD/DDD ratio 0.84 0.97 −0.2, −0.02
 Mean proportion of prescriptions with concomitant use of risk increasing drugs 0.10 0.17 −0.2, 0.02
 Mean proportion of prescriptions with concomitant use of antiulcer drugs 0.19 0.60 −0.6, −0.2
Non aspirin NSAIDs (n = 38)
 Mean duration of 1 prescription (days) 20.1 14.2 −1.8, 13.7
 Mean duration of prescriptions (days) 23.7 19.4 −1.7, 10.3
 Mean PDD/DDD ratio 1.29 1.20 −0.1, 0.3
 Mean proportion of less toxic NSAIDs 0.30 0.66 −0.2, −0.6
 Mean proportion of prescriptions with concomitant use of risk increasing drugs 0.20 0.18 −0.1, 0.2
 Mean proportion of prescriptions with concomitant use of antiulcer drugs 0.11 0.61 −0.7, −0.3