Table 4.

Stability values of the five most stably expressed reference genes according to ΔCT analysis.

Ranking	Total		Nasal polyps		Uncinate process		Control
	Gene	SD	Gene	SD	Gene	SD	Gene	SD
1st population
1	RPLP1	0.48	ATP5F1	0.54	PPIA	0.35	RPLP0	0.37
2	PPIA	0.48	RPLP0	0.54	HPRT1	0.36	ATP5F1	0.38
3	ATP5F1	0.48	RPLP1	0.55	RPLP2	0.36	PGK1	0.39
4	RPLP0	0.48	RPLP2	0.55	PGK1	0.37	RPLP2	0.40
5	HPRT1	0.48	PPIA	0.55	RPS18	0.38	RPS18	0.41
2nd population
1	RPLP0	0.47	RPLP0	0.35	RPLP0	0.53	RPS18	0.41
2	YWHAZ	0.49	ATP5F1	0.37	YWHAZ	0.55	PPIA	0.42
3	RPS18	0.50	PPIA	0.37	PPIA	0.55	RPLP0	0.42
4	RPLP1	0.50	RPLP1	0.39	RPLP1	0.58	YWHAZ	0.43
5	PPIA	0.50	YWHAZ	0.39	RPS18	0.58	RPLP1	0.45