Table 2.

Results from the Wilcoxon signed-rank test with various comparisons and P values.

	6–12 months	6–24 months	6–36 months	12–24 months	12–36 months	24–36 months
Weight
All	<0.0001	<0.0001	<0.0001	0.7675	0.1175	0.0041
Upper airway	<0.0001	0.0002	0.0008	0.439	0.1327	0.0663
Lower airway	<0.0001	0.0035	0.0390	0.5787	0.6584	0.9333
Combined airway	<0.0001	<0.0001	<0.0001	0.1776	0.0783	0.1781
Cardiac	0.0015	0.0034	0.0063	0.0022	0.4854	0.4143
Neuro	0.0425	0.1934	0.1641	0.75	0.9219	0.3203
Other	0.0003	0.0948	0.0082	0.616	0.3788	0.0198
Weight/length
All	0.2365	0.6345	0.8042	0.3026	0.4844	0.4119
Upper airway	0.3097	0.6022	0.5958	0.4684	0.9636	0.3683
Lower airway	0.2248	0.9854	0.5678	0.0233	0.0188	0.2971
Combined airway	0.5055	0.7057	0.7193	0.2727	0.2948	0.8454
Cardiac	0.1675	0.4238	0.3013	0.1677	0.7869	0.5879
Neuro	0.2661	0.8457	0.1719	0.7646	0.8457	0.2402
Other	0.6017	0.8831	0.5678	0.6265	0.3682	0.953

Bold and italic represents statistically significant P values.

z-Score weight comparisons from 6–12, 6–24, and 6–36 months were all significantly different overall and for each of the groups. Comparisons for 12–24, 12–36, and 24–36 months were mostly not statistically different. In weight to length, z-scores were mostly not statistically different.