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Table 3 Demographic characteristics of the enrolled population in China in 2013

From: Comparison of yield and relative costs of different screening algorithms for tuberculosis in active case-finding: a cross-section study

Variable Number Proportion(%)
All 299,610 100.00
Sex
 Male 150,461 50.2
 Female 149,149 49.8
Age group
 0 ~  51,537 17.2
 15 ~  32,312 10.8
 25 ~  40,259 13.4
 35 ~  48,363 16.1
 45 ~  47,675 15.9
 55 ~  45,195 15.1
 65 ~  21,685 7.2
 75 ~  10,658 3.6
 85 ~  19,26 0.6
Ethnicity
 Han 268,145 89.5
 Other 31,465 10.5
Occupation
 Unknown 13,757 4.6
 Child/Student 63,867 21.3
 Housework/Unemployment 17,627 5.9
 Teacher 3103 1.0
 Service provider 6132 2.1
 Health-care worker 1155 0.4
 General worker 37,639 12.6
 Farmer 104,926 35.0
 Migrant worker 8951 3.0
 Retirement 19,999 6.7
 Other 22,454 7.5
Marital status
 Married 190,635 63.6
 Single/divorced 99,173 33.1
 Unknown 9802 3.3
Education level
 Unknown, 10,491 3.5
 Illiterate or semi-illiterate, 37,016 12.4
 Elementary school, 77,294 25.8
 Secondary school, 146,082 48.8
 College and above 28,727 9.6
Previous TB case
 Yes 1595 0.5
 No 298,015 99.5
HIV/AIDS
 Yes 59  < 0.1
 No 299,551  > 99.9
Known diabetes
 Yes 5150 1.7
 No 294,460 98.3
Close contact
 Yes 378 0.1
 No 299,232 99.9
BMI level
  < 18.5 18,031 6.0
 18.5 ≤ BMI < 24.0 160,854 53.7
 24.0 ≤ BMI < 28.0 57,858 19.3
 BMI ≥ 28.0 11,457 3.8
 Unknown 51,410 17.2
Tobacco use
 Never smoke 196,412 65.6
 Prior smoker 4948 1.7
 Current smoker 46,854 15.6
 Unknown 51,396 17.2
Drinking habit
 Never drink 197,481 65.9
 Prior alcohol user 5,107 1.7
 Current alcohol user 45,348 15.1
 Unknown 51,674 17.3
Chronic bronchitis
 Yes 3381 1.1
 No 244,041 81.5
 Unknown 52,188 17.42
Pneumoconiosis
 Yes 178  < 0.1
 No 247,993 82.8
 Unknown 51,439 17.2
Average family annual income per capita*
 Higher than average 91,203 33.0
 Lower than average 185,220 67.0
Average family living area per capita*
 Higher than average 105,812 38.2
 Lower than average 171,007 61.8
  1. Note: * Missing values existed