Table 5.

Self-assessment of the Factors of the I-NPCS-SF and age classes (ANOVA)

					95% Confidence Interval for Mean
Factor I-NPCS-SF	Age Classes	N	Mean	SD	Lower	Upper	F	p-value
F1	<20	58	83.73	10.653	80.925	86.527	0.651	0.583
	21-30	209	85.98	11.220	84.453	87.513
	31-40	50	85.49	9.355	82.831	88.148
	>40	11	85.71	12.194	77.522	93.906
	Total	328	85.50	10.873	84.319	86.681
F2	<20	58	83.25	9.925	80.642	85.861	0.505	0.679
	21-30	209	85.14	11.442	83.577	86.697
	31-40	50	85.05	10.019	82.200	87.895
	>40	11	83.41	14.115	73.923	92.888
	Total	328	84.73	11.052	83.531	85.932
F3	<20	58	76.35	12.817	72.985	79.725	2.343	0.073
	21-30	209	80.75	14.236	78.806	82.689
	31-40	50	82.62	11.284	79.412	85.826
	>40	11	82.90	12.636	74.412	91.389
	Total	328	80.33	13.618	78.849	81.807
F4	<20	58	86.08	10.683	83.275	88.893	2.140	0.095
	21-30	209	89.36	9.099	88.119	90.601
	31-40	50	88.33	8.167	86.012	90.654
	>40	11	86.15	10.147	79.330	92.964
	Total	328	88.52	9.349	87.501	89.532
Total Mean	<20	58	82.35	9.786	79.781	84.927	1.335	0.263
	21-30	209	85.31	10.513	83.873	86.740
	31-40	50	85.37	8.896	82.844	87.901
	>40	11	84.54	12.031	76.459	92.625
	Total	328	84.77	10.225	83.658	85.880