What factor is NOT related to the risk of vitamin K deficiency bleeding?

Vitamin K deficiency bleeding (VKDB) is primarily associated with low levels of vitamin K, particularly in newborns, as this vitamin is crucial for blood coagulation. Factors directly related to VKDB include the newborn's vitamin K status, which can be influenced by maternal nutrition and other perinatal conditions.

Rapid labor may not typically influence vitamin K levels in newborns but could affect the newborn's overall health during birth. Prolonged labor can lead to stress factors that may also impact the newborn's initial health, but these conditions are not directly correlated with vitamin K deficiency.

Excessive weight gain during pregnancy, however, does not have a direct connection to the risk of vitamin K deficiency bleeding. While good maternal nutrition is important for the overall health of both mother and newborn—which would include adequate levels of vitamin K—weight gain itself is not a determining factor for vitamin K levels in the infant. Thus, it stands out as not directly linked to the risk of vitamin K deficiency bleeding.