. 2014 Oct 15;9(10):e108854. doi: 10.1371/journal.pone.0108854

Table 1. Demographic characteristics of individuals with TB disease and their asymptomatic household contacts.

Characteristic^a	TB Disease (n = 17)	Household Contacts (n = 17)	P-value
Age [years; mean (SD)]	35 (12)	42 (11)	0.09
Male sex, n (%)	10 (59%)	6 (35%)	0.16
Current smoker, n (%)	13 (76%)	7 (41%)	0.036
Currently employed, n (%)	8 (47%)	11 (64%)	0.023
Total calorie intake [kcal/kg/day; mean (SD)]	56.6 (17.8)	42.1 (11.7)	0.009
Total protein intake [g/kg/day; mean (SD)]	1.7 (0.8)	1.2 (0.5)	0.058
Total fat intake [g/kg/day; mean (SD)]	2.0 (0.8)	1.5 (0.5)	0.07
Total carbohydrate intake [g/kg/day; mean (SD)]	8.3 (2.4)	5.5 (1.4)	<0.001
BMI [kg/m²; mean (SD)]	20.7 (2.0)	25.6 (4.0)	<0.001

Annual income and educational level were similar between the two groups (data not shown).

SD = standard deviation; BMI = body mass index; kcal/kg/day = kilocalories/kilogram/day; g/kg/day = gram/kilogram/day.