Table 2.

Results of post hoc analyses (Tukey tests) indicating the ages (in weeks) at which infant ER pressure differences (ERat a given static ear-canal pressure minus ER at TPP) were significantly different from adults (α=0.05). A blank space indicates the lack of a statistically significant difference between any of the infant groups and the adult group.

Frequency(Hz)	Static ear-canal pressure (daPa) relative to tympanometric peak pressure (TPP)
	−200	−100	−50	−25	25	50	100	200
250	4 12	4	4					4 12
315	4 12	4	4					4 12
397	4 12				4			4 12
500			4		4 12 24	4 12 24	4	12
630		4 12 24	4 12 24	4	4 12 24	4 12 24	4 12 24	4
794	4 12	4 12 24	4 12 24	4 12	4 12	4 12	4 12	4 12
1000	4 12	4 12 24	4 12 24	4 12 24	4 12 24	12	12	12
1260		4 12 24	4 12 24	4 12 24	4 12 24	4
1587	12 24	4 12 24	12 24	12		4
2000	12 24	12 24	12 24	12	12	4	4	4
2520	12 24	12 24			12 24	24	4	4
3175	12 24	12 24		4	12 24		4	4 12 24
4000	4	4	4	4	12 24	12 24	4 12 24	4 24
5040	4 12 24	4 24	4 24	4	12 24	12 24	12 24	4 12 24
6350	4 24	4	4 24	24				4
8000						4	4	4