Table 2.

Summary of non-infectious factors contributing to postweaning mortality based on incidence and magnitude of potential mortality¹

Item	Sub-classification	Incidence2	Magnitude3
Anatomic abnormality
	Lameness/physical injury	++	++
	Gastric ulceration	+++	++
	Acute abdominal incidents	+	+++
	Umbilical herniation	+	+
	Rectal prolapse	++	++
	Scrotal/inguinal herniation	+	++
Toxicity
	Mycotoxins	+++	+
	Sodium ion toxicosis	+	+++
	Ionophore toxicosis	+	+++
	Toxins of lower incidence	+	++
Animal factors
	Sex	N/A	+
	Genetics	N/A	++
	Birth weight	N/A	+++
	Dam parity	N/A	++
Facility factors		N/A	+
Environmental factors		N/A	++
Season		N/A	+++
Nutritional inadequacy		+	+++
Management factors
	Preweaning management	N/A	+++
	Weaning age and weight	N/A	+++
	Barn fill length and sources of pigs	N/A	++
	Resource availability	N/A	++
	Group size	N/A	+
	Transportation	N/A	+
	Sanitation	N/A	++

¹ Qualitative assignment of relative incidence and magnitude of mortality was performed by primary author (J.T.G.) based on summarization of published literature.

² Where appropriate, relative incidence of mortality attributed to the factor was denoted using a system ranging from + to +++. Where estimates of incidence were not appropriate, N/A was indicated.

³ Relative magnitude of mortality in a population attributed to the presence of factor was described as + (low potential), ++ (moderate potential), and +++ (significant potential).