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Table 1 Characteristics of health care workers (HCWs) screened for symptoms or sputum testing or clinically-diagnosed TB

From: Evaluating a framework for tuberculosis screening among healthcare workers in clinical settings, Inner Mongolia, China

Characteristic

HCWs with symptom screening (n = 3011a)

HCWs eligible for sputum testingb (n = 124a)

Met case definition for clinically-diagnosed TBc (n = 12)

n (%)

n (%)

n (%)

DEMOGRAPHICS

Sex

 Female

1997 (66%)

67 (54%)

9 (75%)

 Male

1014 (34%)

57 (46%)

3 (25%)

Age, years

 18–29

598 (20%)

14 (11%)

1 (8%)

 30–39

824 (27%)

32 (26%)

4 (33%)

 40–49

1029 (34%)

40 (33%)

4 (33%)

  ≥ 50

558 (19%)

36 (30%)

3 (25%)

Education

 College or above

852 (28%)

52 (43%)

6 (50%)

 Some college or tech school

1480 (49%)

48 (39%)

4 (33%)

 High school or below

674 (22%)

22 (18%)

2 (17%)

Self-reported BCG

 Did not have BCG

1521 (51%)

55 (45%)

2 (17%)

 Had BCG

1468 (49%)

66 (55%)

10 (83%)

Smoking status

 Never smoker

2319 (77%)

80 (66%)

10 (83%)

 Former/current smoker

681 (23%)

41 (34%)

2 (17%)

TB infection and disease history

 Previous diagnosis of TB

147 (5%)

27 (22%)

4 (33%)

 Previous TST

591 (20%)

37 (30%)

7 (58%)

  Tested within last 5 years

217 (37%)

10 (27%)

2 (29%)

  Previously positive TSTd

239 (41%)

24 (67%)

4 (57%)

WORK-RELATED TB RISK FACTORS

Work type

 Clinician or nurse

1420 (47%)

62 (51%)

7 (58%)

 Clinical supportf

713 (24%)

25 (20%)

1 (8%)

 Administrative

411 (14%)

21 (17%)

2 (17%)

 Other (e.g., cleaner, cook)

462 (15%)

14 (11%)

2 (17%)

Working time in health care

  ≤ 5 years

746 (25%)

23 (19%)

2 (18%)

 6–15 years

679 (23%)

19 (16%)

4 (36%)

  > 15 years

1530 (52%)

78 (65%)

5 (45%)

Direct contact with TB cases

 TB patients

1295 (43%)

83 (68%)

10 (83%)

 Coworkers with history of TB

254 (8%)

19 (16%)

4 (33%)

 Household member with TB

230 (8%)

10 (8%)

1 (8%)

Average daily time with patients

 0 h

803 (27%)

23 (19%)

1 (8%)

  < 1 h

458 (15%)

21 (17%)

4 (33%)

 1–4 h

506 (17%)

22 (18%)

3 (25%)

  > 4 h

1234 (41%)

55 (45%)

4 (33%)

OTHER SCREENING RESULTS

Symptoms in the last 4 weeks

 None

2714 (90%)

49 (40%)

7 (58%)

 Cough only

191 (6%)

53 (43%)

3 (25%)

 Fever or night sweats, no cough

35 (1%)

1 (0.8%)

1 (8%)

 Fever or night sweats, any cough

31 (1%)

13 (10%)

0

TST (mm)

n=2568e

  

  < 5

714 (28%)

20 (18%)

0

 5–14

1232 (48%)

49 (45%)

0

 15–19

356 (14%)

24 (22%)

0

  ≥ 20

251 (10%)

15 (15%)

12 (100%)

X-ray results

n=2269e

n=103e

 

 Consistent with TB

57 (2%)

59 (57%)

12 (100%)

 Abnormal, not consistent with TB

65 (3%)

1 (1%)

0

 Normal

2147 (95%)

43 (42%)

0

  1. Footnotes:
  2. aCategories may not total n due to missing data
  3. b Defined as HCWs who had a chest X-ray consistent with TB OR a cough lasting ≥ 14 days in the past 4 weeks
  4. c Defined as HCWs who had a chest X-ray consistent with TB AND a TST induration ≥ 20 mm
  5. d HCW self-report of TST positivity. We did not ask what induration size was considered positive. Chinese guidelines categorize 5–9 mm as general positive, 10–19 mm as medium positive and ≥ 20 mm as very positive (See: Ministry of Health People’s Republic of China. Diagnostic criteria for pulmonary tuberculosis. 2008. [11])
  6. e The denominators in these sub-sections are a subset of the HCWs within the column. The denominators are: a subset of HCWs with symptom screening who received TST, a subset of HCWs with symptom screening who received chest x-ray, and a subset of HCWs eligible for sputum testing who received chest x-ray
  7. f Clinical support jobs were radiographer/X-ray technician, laboratorian, public health/preventive medicine, and pharmacists