Figure 5

Age in relation to collagen concentration and normalized maximum stiffness. Age in relation (linear regression) to (A) collagen concentration (mg collagen/mg DDW × 100) of cervical samples from non-pregnant women (unadjusted by simple regression: r = 0.36, p = 0.006, adjusted for parity by multiple linear regression: r = 0.45, p = 0.003) and (B) normalized maximum stiffness (unadjusted: r = 0.32, p = 0.017, adjusted for parity: r = 0.33, p = 0.017).