Table 9.

Age-related reference intervals (RIs) for central (aortic) augmentation index (cAIx) for females (n = 462).

Age (years)	1th	2.5th	5th	10th	25th	50th	75th	90th	95th	97.5th	99th
5.2	3.5	6.8	9.7	13.3	19.8	27.5	35.8	43.7	48.6	53.0	58.2
6.0	1.4	4.4	7.2	10.5	16.5	23.7	31.4	38.8	43.4	47.5	52.4
7.0	−0.5	2.2	4.8	7.8	13.4	20.1	27.3	34.1	38.4	42.3	46.8
8.0	−1.9	0.6	3.0	5.9	11.1	17.4	24.1	30.6	34.7	38.3	42.6
9.0	−2.9	−0.5	1.7	4.4	9.3	15.3	21.8	28.0	31.8	35.3	39.4
10.0	−3.7	−1.4	0.7	3.4	8.1	13.8	20.0	25.9	29.6	33.0	36.9
11.0	−4.2	−2.0	0.1	2.6	7.1	12.7	18.6	24.4	28.0	31.2	35.0
12.0	−4.5	−2.4	−0.4	2.0	6.4	11.8	17.7	23.2	26.7	29.9	33.6
13.0	−4.7	−2.7	−0.7	1.7	6.0	11.3	17.0	22.4	25.9	28.9	32.6
14.0	−4.8	−2.8	−0.9	1.5	5.7	10.9	16.5	21.9	25.2	28.3	31.9
15.0	−4.8	−2.8	−0.9	1.4	5.6	10.7	16.3	21.6	24.9	27.9	31.4
16.0	−4.8	−2.7	−0.8	1.5	5.6	10.7	16.2	21.4	24.7	27.7	31.2
17.0	−4.6	−2.6	−0.7	1.6	5.8	10.8	16.3	21.5	24.8	27.7	31.2
18.0	−4.4	−2.3	−0.5	1.9	6.0	11.0	16.5	21.7	25.0	27.9	31.4
19.0	−4.1	−2.0	−0.1	2.2	6.3	11.4	16.8	22.1	25.3	28.2	31.7
20.0	−3.7	−1.7	0.3	2.6	6.8	11.8	17.3	22.5	25.8	28.7	32.2
21.0	−3.3	−1.2	0.7	3.1	7.3	12.4	17.9	23.1	26.4	29.3	32.8
21.8	−3.0	−0.8	1.1	3.5	7.7	12.9	18.4	23.7	27.0	29.9	33.4