Table 2.

Characteristics of Participants Completing Full BOLD Core Questionnaire, Including Those with and without ATS Standard Spirometry

Variable (n)	Number (%)*
Age group, yr (n = 1,058)
18–29	283 (26.8)
30–39	190 (18.0)
40–49	253 (23.9)
50–59	182 (17.2)
60–69	98 (9.3)
≥ 70	52 (4.9)
Sex (n = 1059)
Male	446 (42.1)
Female	613 (57.9)
Level of education (n = 1,054)
None	59 (5.6)
Primary	394 (37.4)
Middle	391 (37.1)
High school or college	210 (19.9)
Years of education, mean (SD) (n = 1,057)	9.29 (4.35)
HIV status (n = 933)
Negative	707 (75.8)
Positive	226 (24.2)
Self-reported previous TB (n = 1,057)
No	1026 (97.1)
Yes	31 (2.9)
Hemoglobin, g/dl, mean (SD) (n = 936)	13.9 (1.80)
Eosinophil blood count >2% (n = 927)
No	291 (31.4)
Yes	636 (68.6)
BMI group, kg/m2 (n = 972)
Underweight (BMI < 18.5)	77 (7.9)
Normal (18.5 ≤ BMI < 25)	568 (58.4)
Overweight (25 ≤ BMI < 30)	202 (20.8)
Obese (BMI ≥ 30)	125 (12.9)
Home ownership (n = 1,057)
Yes	627 (59.3)
No	430 (40.7)
Access to private water supply (indoor or outdoor tap) (n = 1,057)
Yes	492 (46.6)
No	565 (53.4)
Household has flush toilet (n = 1,057)
Yes	265 (25.1)
No	792 (74.9)
Smoking status (n = 1,057)
Ever	110 (10.4)
Never	947 (89.6)
Pack-years of smoking (n = 1,057)
0	947 (89.6)
>0 and <10	89 (8.4)
≥10	21 (2.0)
Biomass exposure† (n = 1,057)
No	157 (14.8)
Yes	900 (85.2)
Working in farming >3 mo (n = 1,056)
No	748 (70.8)
Yes	308 (29.2)

Definition of abbreviations: ATS = American Thoracic Society; BMI = body mass index; BOLD = Burden of Obstructive Lung Disease; TB = tuberculosis.

^*Unless otherwise indicated.

^†Use of charcoal, coal, or coke, or burning of wood, dung, or crop residue for more than 6 months for cooking, or burning of wood, dung, or crop residue for heating water.