. 2016 May 16;10(5):e0004724. doi: 10.1371/journal.pntd.0004724

Table 1. Selected baseline characteristics of study participants, and by Trypanosoma cruzi infection (The Bambui Cohort Study of Ageing).

Characteristics	Total	Infection
	(n = 1343)	Yes (n = 505)	No (n = 838)
Age in years, mean (SD)	68.8 (7.0)	69.2 (6.9)	68.6 (7.0)
Female sex, %	61.2	67.9	57.2^a
< 4 years of schooling	64.1	84.8	51.7^b
Monthly household income per capita < 180 USD	46.9	52.7	43.4^b
Father’s occupation, %
Urban	11.4	4.2	15.8^a
Rural: landowner	25.4	16.5	30.8
Rural: manual worker	52.4	67.6	43.3
Unknown	10.7	11.7	10.1
Current smokers, %	17.7	16.8	18.3
Any major ECG abnormality, %	41.0	56.4	31.7^a
Body mass index in kg/m², mean (SD)	25.1 (4.9)	24.4 (5.1)	25.6 (4.8)^b
Hypertension, %	61.3	60.4	61.8
Diabetes, %	14.6	10.7	17.0^b
Coronary heart disease, %	13.1	17.6	10.4^b
High sensitivity C-reactive protein in mg/L, median (IQR)	3.17 (4.93)	3.08 (4.92)	3.25 (4.94)
Non-HDL cholesterol in mg/dL, mean (SD)	185.0 (50.0)	184.0 (51.2)	185.6 (51.2)
African genomic ancestry, median (IQR)	9.6 (12.7)	12.8 (15.2)	8.4 (10.5)^a
Native American genomic ancestry, median (IQR)	5.4 (5.6)	7.1 (5.9)	4.6 (4.8)^a
European genomic ancestry, median (IQR)	83.8 (16.9)	78.6 (19.4)	86.1 (15.2)^a
Proportion of sub continental ancestry relative to total African genomic ancestry
Western African, median (IQR)	63.9 (28.9)	65.0 (23.5)	62.5 (31.9)
Eastern African, median (IQR)	36.1 (28.9)	35.1 (23.5)	37.5 (31.9)

SD, standard deviation; ECG, electrocardiogram; IQR, interquartile range; HDL, high-density lipoprotein cholesterol.

^ap<0.001, Pearson´s chi square, one way ANOVA or Kruskall Wallis tests for differences between frequencies, means and medians, respectively.

^bp<0.01, Pearson´s chi square, one way ANOVA or Kruskall Wallis tests for differences between frequencies, means and medians, respectively.