Table 2. Comparison of deceased blood donors seronegative and seropositive for Chagas disease, at FPS, São Paulo, Brazil, from 1996–2000, by ICD-10 chapters of the underlying causes of death.

Basic Cause of Death Description	Seroposite	Seronegative	p-value
	n = 159	n = 103	p<0.001
Chapter I—Certain infectious and parasitic diseases	32	3
Chapter II—Neoplasms	22	17
Chapter IV—Endocrine, nutritional and metabolic diseases	0	2
Chapter V—Mental and behavioural disorders	1	0
Chapter VI—Diseases of the nervous system	0	1
Chapter IX—Diseases of the circulatory system	58	20
Chapter X—Diseases of the respiratory system	9	2
Chapter XI—Diseases of the digestive system	8	8
Chapter XIV—Diseases of the genitourinary system	2	0
Chapter XVII—Congenital malformations, deformations and chromosomal abnormalities	0	1
Chapter XVIII—Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified	9	8
Chapter XX—External causes of morbidity and mortality	18	41