Table 3. Variation of acid-base status over the LII according to RRF.

	With RRF	Without RRF	p
	n= 27	n=24
pH
Beginning of the LII	7.43 ± 0.47	7.40 ± 0.04	0.018#
Mean variation	-0.12 ± 0.05	-0.12 ± 0.08	0.940#
End of the LII	7.30 ± 0.05	7.27 ± 0.06	0.073#
Bicarbonate
Beginning of the LII	26.62 ± 2.50	26.00 ± 2.40	0.372#
Mean variation	-6.71 ± 3.52	- 6.76 ± 3.48	0.959#
End of the LII	19.91 ± 2.85	19.24 ± 2.84	0.403#
pCO2
Beginning of the LII	39.80 ± 3.99	41.93 ± 5.47	0.116#
Mean variation	- 0.60 ±4.08	-0.88 ± 4.70	0.821#
End of the LII	39.19 ± 6.24	41.04 ± 4.02	0.221#

^#t-test for independent samples