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Table 4 Drain output

From: Comparing parecoxib and ketorolac as preemptive analgesia in patients undergoing posterior lumbar spinal fusion: a prospective randomized double-blinded placebo-controlled trial

Drain output at each time point

Post operative hour (hr)

Drain output (ml)

Control

Ketorolac

Parecoxib

P

0

122.7 ± 89.2

107.9 ± 46.3

105 ± 51.2

0.514

8

105.9 ± 49.8

86.6 ± 66.6

114.5 ± 88.9

0.304

16

111.1 ± 87.6

76.2 ± 66.9

81.1 ± 61.1

0.122

24

108.3 ± 172.2

57.8 ± 99.4

84.4 ± 127.7

0.338

Total

408.1 ± 240.7

325.2 ± 204.6

373.7 ± 244.5

0.356

  1. The values are given as mean and standard deviation.