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Table 3 Data regarding postoperative nausea, sedation and pruritus scores.

From: Determination of the efficacy and side-effect profile of lower doses of intrathecal morphine in patients undergoing total knee arthroplasty

Variable

100 μg IT Morphine

200 μg IT Morphine

300 μg IT Morphine

Postoperative Nausea Scores

   

   0 hrs

0 (0, 0)

0 (0, 0)

0 (0, 0)

   4 hrs

0 (0, 0.5)

0 (0, 0)

0 (0, 2.5)

   8 hrs

0 (0, 0)

0 (0, 2)

0 (0, 2)

   12 hrs

0 (0, 0)

0 (0, 0)

0 (0, 0)

   16 hrs

0 (0, 0)

0 (0, 0)

0 (0, 0)

   20 hrs

0 (0, 0)

0 (0, 0)

0 (0, 0)

   24 hrs

0 (0, 0)

0 (0, 0)

0 (0, 0)

Postoperative Pruritus Scores

   

   0 hrs

0 (0, 0)

0 (0, 0)

0 (0, 0.5)

   4 hrs

0 (0, 2)

2 (0, 2)

0 (0, 2)

   8 hrs

0 (0, 2)

0 (0, 2)

0 (0, 0)

   12 hrs

0 (0, 0)

0 (0, 0.5)

0 (0, 0)

   16 hrs

0 (0, 0)

0 (0, 0)

0 (0, 0)

   20 hrs

0 (0, 0)

0 (0, 0)

0 (0, 0)

   24 hrs

0 (0, 0)

0 (0, 0)

0 (0, 2)

Postoperative Sedation Scores

   

   0 hrs

1 (1, 1)

1 (1, 1)

1 (1, 1)

   4 hrs

1 (1, 2)

1 (1, 1)

1 (1, 3)

   8 hrs

1 (1, 4)

1 (1, 1.25)

1 (1, 4)

   12 hrs

4 (1, 4)

1 (1, 4)

4 (1, 4)

   16 hrs

1 (1, 4)

1 (1, 4)

4 (1, 4)

   20 hrs

1 (1, 1)

1 (1, 1)

1 (1, 1)

   24 hrs

1 (1, 1)

1 (1, 1)

1 (1, 1)

  1. Notes: Data are presented as median (interquartile range).
  2. Abbreviations: IT, intrathecal.