Evaluation of Usefulness of hs-CRP and Ferritin Assays in Patients with Nasal Polyps

Table 1

The basic descriptive parameters and the results of the Shapiro-Wilk test and the 𝑡-test for the expected value.

Group	Parameter	Stage of the study	Estimators for descriptive parameters				S-W test	𝑡 test
			𝑥	SD	𝑥min	𝑥max	𝑃	Norm	𝑃
Group I treated anti-inflammatory two weeks after surgery	Ferritin (ng/mL)	Before surgery	75.4	33.8	30.5	132.1	>0.05	≤140; ≥45	<0.001; <0.001
		2 weeks after surgery	64.7	30.3	21.5	120.9	>0.05	≤140; ≥45	<0.001; <0.01
		6 weeks after surgery	52.4	21.3	21.7	91.0	>0.05	≤140; ≥45	<0.001; >0.05
	hs-CRP (mg/L)	Before surgery	1.04	0.57	0.29	2.03	>0.05	≤3.0	<0.001
		2 weeks after surgery	0.88	0.49	0.15	1.84	>0.05	≤3.0	<0.001
		6 weeks after surgery	0.65	0.34	0.19	1.40	>0.05	≤3.0	<0.001
Group II patients treated only surgically, without anti-inflammatory therapy	Ferritin (ng/mL)	Before surgery	70.4	40.7	15.6	143.5	>0.05	≤140; ≥45	<0.001; <0.01
		2 weeks after surgery	58.9	28.9	20.8	124.8	>0.05	≤140; ≥45	<0.001; <0.05
		6 weeks after surgery	65.9	27.2	23.6	136.0	>0.05	≤140; ≥45	<0.001; <0.01
	hs-CRP (mg/L)	Before surgery	1.28	0.52	0.37	2.60	>0.05	≤3.0	<0.001
		2 weeks after surgery	1.14	0.40	0.39	1.88	>0.05	≤3.0	<0.001
		6 weeks after surgery	0.92	0.48	0.23	1.98	>0.05	≤3.0	<0.001