Table 2

		TAPSE (cm)					BSA (m2)			Indexed TAPSE Mean/BSA Mean
			Bounds for z-score- ranges
Age	n	Mean	±2s (95%)		±3s (99%)		Mean	Min	Max
0 - 30 days	41	0.91	0.68	1.15	0.56	1.26	0.22	0.14	0.28	4.14
1 - 3 months	45	1.14	0.85	1.42	0.71	1.56	0.29	0.12	0.54	3.93
4 - 6 months	20	1.31	1.01	1.65	0.86	1.77	0.34	0.26	0.41	3.85
7 - 12 months	22	1.44	1.13	1.77	0.97	1.91	0.40	0.31	0.47	3.6
1 years	25	1.55	1.25	1.88	1.10	2.00	0.47	0.3	0.69	3.29
2 years	39	1.65	1.36	1.94	1.22	2.09	0.53	0.4	0.62	3.11
3 years	27	1.74	1.48	2.02	1.35	2.14	0.63	0.52	0.77	2.76
4 years	47	1.82	1.56	2.07	1.43	2.20	0.70	0.6	0.91	2.60
5 years	29	1.87	1.60	2.13	1.47	2.26	0.77	0.63	0.99	2.42
6 years	41	1.90	1.62	2.18	1.48	2.33	0.82	0.46	1.06	2.31
7 years	32	1.94	1.64	2.25	1.49	2.39	0.94	0.75	1.17	2.06
8 years	23	1.97	1.67	2.28	1.52	2.43	0.97	0.79	1.39	2.03
9 years	20	2.01	1.73	2.30	1.58	2.44	1.00	0.8	1.32	2.01
10 years	27	2.05	1.79	2.31	1.65	2.46	1.15	0.82	1.54	1.78
11 years	25	2.10	1.83	2.36	1.69	2.50	1.28	1.06	1.55	1.64
12 years	18	2.14	1.84	2.43	1.68	2.60	1.39	1.08	1.67	1.53
13 years	20	2.20	1.85	2.54	1.68	2.71	1.48	1.03	1.87	1.49
14 years	35	2.26	1.87	2.65	1.68	2.84	1.55	1.11	1.93	1.46
15 years	25	2.33	1.93	2.75	1.74	2.92	1.59	1.32	1.96	1.46
16 years	34	2.39	1.98	2.78	1.78	3.01	1.66	1.3	2.04	1.44
17 years	27	2.45	2.04	2.88	1.83	3.06	1.77	1.43	2.06	1.38
18 years	21	2.47	2.05	2.91	1.84	3.10	1.79	1.34	2.25	1.37

Table 2: Classification table for the TAPSE values. The values in the classification table are shown as follows. For each age group the standard deviation (s) of TAPSE was taken to construct ranges of the mean ± 2s and ± 3s. These ranges represent the expectable normal intervals of deviation for a certainty level of 95% and 99%. Further the mean, the minimum and the maximum of BSA was calculated for the several age groups. An index was calculated of the TAPSE mean for age divided by the BSA mean for each age group. Abbreviations: TAPSE, tricuspid annular plane systolic excursion; BSA, body surface area; s, standard deviation.