Table 2.

Mechanical Thresholds and Responses to Threshold and Suprathreshold von Frey Hair Stimulation before and 1-hour after Incision

	Threshold (g)	Threshold Response (spikes/sec)	Suprathreshold Response (spikes/sec)
P7
Before	4 (0.6 – 8.5)	4.8 ± 1.5	13.7 ± 2.9
After	2.5 (0.4 – 8.5)	8.2 ± 1.4	23.1 ± 5.7
p-value	<0.05	<0.05	<0.05
P28
Before	7.5 (0.4 – 8.5)	3.4 ± 0.8	11.0 ± 2.4
After	1.8 (0.4 – 6.4)	8.7 ± 1.7	22.4 ± 6.2
p-value	<0.05	<0.05	<0.05
p-value for Change score between ages	ns	ns	ns

Threshold and suprathreshold (ST) responses are elicited spikes to threshold von Frey hair and suprathreshold von Frey hair.

ns = not statistically significant

P7 = postnatal day 7

P28 = postnatal day 28