Post Laparoscopy Pain Reduction Project I (POLYPREP I): intraperitoneal normal saline instillation—a randomised controlled trial

Table 3 Postoperative abdominal pain

Postoperative duration (h)	Control, n = 34		INSI, n = 34		p-value
Postoperative duration (h)	Pain score (mean ± SD)	95% CI	Pain score (mean ± SD)	95% CI	p-value
At rest
24	3.32 ± 2.33	0.40, 2.51	2.56 ± 2.05	0.35, 11.84	0.155
48	1.76 ± 1.56	0.27, 1.22	1.09 ± 1.33	0.23, 0.62	0.059
72	0.59 ± 1.02	0.18, 0.23	0.29 ± 0.91	− 0.02, 0.61	0.213
On movement
24	5.14 ± 1.90	0.33, 4.51	4.35 ± 2.17	0.37, 3.56	0.101
48	3.29 ± 1.77	0.30, 2.68	2.21 ± 1.97	0.34, 1.52	0.019
72	1.56 ± 1.59	0.27, 1.01	0.65 ± 1.10	0.19, 0.26	0.007

Data expressed as mean ± SD (standard deviation) and 95% CI (confidence interval for mean). The test of significance was performed by one-way ANOVA test
CI, confidence interval; INSI, intraperitoneal normal saline; SD, standard deviation

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