Table 5.

FP stratified by age.

Age Group (Years)	n	Mean (%)	SD	Lower 95%CI	Upper 95%CI	p-Value
						vs. 20–29	vs. 30–39	vs. 40–49	vs. 50–59	vs. 60–69	vs. 70–79	vs. 80–89	vs. 90–99
10–19	67	6.45	11.97	3.53	9.37	<0.0001 *	<0.0001 *	<0.0001 *	<0.0001 *	<0.0001 *	<0.0001 *	<0.0001 *	<0.0001 *
20–29	98	2.57	7.08	1.15	3.99	-	1.0000	0.0548	0.0090 *	0.0385 *	0.0220 *	0.0026 *	0.0465 *
30–39	225	2.24	3.97	1.71	2.76	-	-	0.0057 *	<0.0001 *	0.0008 *	0.0002 *	<0.0001 *	0.0269 *
40–49	399	1.59	4.11	1.19	1.99	-	-	-	0.9990	1.0000	1.0000	0.9449	0.9749
50–59	912	1.22	2.59	1.06	1.39	-	-	-	-	0.9072	0.9876	0.9983	0.9963
60–69	1805	1.40	3.03	1.26	1.54	-	-	-	-	-	0.9998	0.3584	0.9363
70–79	2217	1.33	2.62	1.22	1.44	-	-	-	-	-	-	0.6134	0.9666
80–89	1003	1.15	2.42	1.00	1.30	-	-	-	-	-	-	-	0.9998
90–99	66	0.91	1.97	0.43	1.39	-	-	-	-	-	-	-	-

To adjust the multi-pair comparisons, the p values are calculated using the Tukey-Kramer’s HSD test between each pair of groups. * p < 0.05. SD, standard deviation; CI, confidence interval.