Table 4. Subsample comparisons of ossified and adult sized fetal labyrinths against estimated gestational age (EGA) and against reported adult means (Welch's test of equality). Measures included show significant intralabyrinth change over the fetal period investigated (Table 3).

Fetal subsamples	ASC-R	PSC-R	LSC-R	CO-R	LSCh/w	ASC-tor	PSC-tor	ASCm<PSCm	COt<VSC	APA<LSCm	COs<LSCm
Adult sized
n	18	18	18	18	18	18	18	18	18	18	18
Mean	3.19	3.08	2.34	2.42	92.3	13.1	−3.7	100.8	113.2	36.6	53.0
SD	0.20	0.26	0.27	0.19	7.1	4.2	5.0	5.7	5.3	5.5	5.7
Ossified
n	19	12	11	19	11	19	12	12	19	11	11
Mean	3.18	3.08	2.39	2.42	93.4	13.4	−4.1	102.7	113.1	38.2	54.2
SD	0.20	0.27	0.18	0.19	7.7	4.2	5.5	6.1	5.2	6.1	4.6
vs. EGA†
Adult sized (rank)	0.29 ns	0.36 ns	0.35 ns	0.12 ns	0.03 ns	−0.44 ns	−0.28 ns	0.51*	−0.59**	0.65 ns	0.27 ns
Ossified (rank)	0.34 ns	0.34 ns	−0.18 ns	0.08 ns	0.26 ns	−0.51*	−0.13 ns	−0.04 ns	−0.51*	0.08 ns	0.57 ns
vs. Reported adult means†‡
Adult sized (Welch's test)	ns	ns	ns	ns	ns	<*	<***	<*	ns	<**	>***
Ossified (Welch's test)	ns	ns	ns	ns	ns	<*	<*	ns	ns	ns	>*

^†*P ≤ 0.05

^**P ≤ 0.01

^***P ≤ 0.001; ns, no significant difference between means.

^‡> fetal mean significantly greater than adult; < fetal mean significantly less than adult.