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Table 2: SN FW outcomes over 3 years of follow-up in HC and IPD groups^{^a}
HC (n = 19) IPD (n = 19) Group Effect Time Effect Interaction
Baseline Follow-Up Baseline Follow-Up
aSN FW .2301 (.0243) .2361 (.0351) .2713 (.0535) .2989 (.0364) <.001 .112 .021
pSN FW .2221 (.0349) .2452 (.0367) .2691 (.0513) .2955 (.0441) .014 .246 .651
↵a Values are mean (SD). Group, time, and group × time interaction effect values are P values.

	HC (n = 19)		IPD (n = 19)		Group Effect	Time Effect	Interaction
	Baseline	Follow-Up	Baseline	Follow-Up	Group Effect	Time Effect	Interaction
aSN FW	.2301 (.0243)	.2361 (.0351)	.2713 (.0535)	.2989 (.0364)	<.001	.112	.021
pSN FW	.2221 (.0349)	.2452 (.0367)	.2691 (.0513)	.2955 (.0441)	.014	.246	.651