Table 2.

Mean length of elastic fibers observed in the vaginal wall of Sprague-Dawley rats having undergone various modes of delivery, as described in the text, for two distinct sets of rats. As in Table 1, the numbers in parenthesis represent the total number of fibers over which the measurements were taken. The results of a t-test are shown in the forth column, indicating the probability that the measurements are statistically different comparing two days to two weeks postpartum rats (simulated, spontaneous and Cesarean cohorts) and between the multiparous and virgin rats.

Mean Fiber Length	2 Days [μm]	2 Weeks [μm]	t-test [%]
Simulated	45.07 ± 5.33 (2978)	75.38 ± 6.59 (1754)	98.1
Spontaneous	56.67 ± 3.82 (1762)	58.34 ± 4.98 (1616)	28.5
Cesarean	56.77 ± 5.76 (1853)	59.95 ± 5.46 (1600)	49.4
Mulitparous	54.64 ± 5.89 (2635)		72.5
Virgin	48.72 ± 5.31 (2340)