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Table 2 Clinical and microbiologic characteristics of patients with tuberculosis caused by Mycobacterium bovis or Mycobacterium tuberculosis, Mexico City, 2000–2015

From: Human tuberculosis caused by Mycobacterium bovis: a retrospective comparison with Mycobacterium tuberculosis in a Mexican tertiary care centre, 2000–2015

 

Etiological agent

 

Characteristic

M. bovis

(n = 161)

M. tuberculosis

(n = 372)

p a

Anatomical site of isolation

 Pulmonary

58/161 (36)

196/372 (52.6)

<0.001

 Extrapulmonary

67/161 (41.6)

112/372 (30.1)

0.01

 Pulmonary and Extrapulmonary

36/161 (22.3)

64/372 (17.2)

0.16

Primary site of isolation (Restricted to pulmonary cases with and extrapulmonary involvements casesb)

 Abdominalc

7/36 (19.4)

22/64 (34.3)

0.11

 Genitourinary

16/36 (44.4)

22/64 (34.3)

0.31

 Central Nervous System

10/36 (27.7)

9/64 (14)

0.093

 Lymph node

0/36 (0)

1/64 (1.5)

 Skin, joint, bone, and soft tissue

3/36 (8.3)

2/64 (3.1)

0.25

 Blood, bone marrow, liver, and spleen

0/36 (0)

8/64 (12.5)

Primary site of isolation (Restricted to extrapulmonary casesd)

 Abdominalc

22/67 (32.8)

12/112 (10.7)

<0.001

 Genitourinary

9/67 (13.4)

26/112 (23.2)

0.11

 Central Nervous System

14/67 (20.9)

17/112 (15.1)

0.32

 Lymph node

15/67 (22.3)

37/112 (33)

0.12

 Skin, joint, bone, and soft tissue

4/67 (5.9)

13/112 (11.6)

0.21

 Blood, bone marrow, liver, and spleen

3/67 (4.4)

7/112 (6.2)

0.61

Primary site of isolation (Restricted to pulmonary cases with and extrapulmonary involvement casesd)

 Abdominalc

7/36 (19.4)

22/64 (34.3)

0.11

 Genitourinary

16/36 (44.4)

22/64 (34.3)

0.31

 Central Nervous System

10/36 (27.7)

9/64 (14)

0.093

 Lymph node

0/36 (0)

1/64 (1.5)

 Skin, joint, bone, and soft tissue

3/36 (8.3)

2/64 (3.1)

0.25

 Blood, bone marrow, liver, and spleen

0/36 (0)

8/64 (12.5)

 Symptom onset to diagnosis, days, median (IQR)

63 (32–154)

90 (34–197)

0.089e

Presenting symptoms

 Fever

127/159 (79.8)

254/364 (69.7)

0.019

 Weight loss

72/159 (45.2)

181/364 (49.7)

0.38

 Cough

60/159 (37.7)

195/364 (53.5)

0.001

 Haemoptysis

5/159 (3.1)

29/364 (7.9)

0.039

 Gastrointestinalf

71/159 (44.6)

117/364 (32.3)

0.007

 Neurological

30/159 (18.8)

63/364 (17.3)

0.67

 Genitourinary

10/159 (6.2)

29/364 (7.9)

0.49

Primary multidrug resistanceg

1/161 (0.6)

6/372 (1.6)

0.35

Mean TST induration, mm, (IQR)

9.6 (0–18)

14 (0–25)

0.02e

 ≥5 mm

30/76 (39.4)

91/172 (52.9)

0.051

 ≥10 mm

29/76 (38.1)

91/172 (52.9)

0.032

 ≥15 mm

23/76 (30.2)

79/172 (45.9)

0.021

  1. Data are n/N (%) of cases, unless otherwise indicated. n values across categories might be less than the counts in the column headings due to missing data
  2. IQR Interquartile range, TST tuberculin skin test
  3. ap values were determined by the two-sample test of proportion or the χ2 test, as appropriate
  4. bRestricted to cases with extrapulmonary disease only
  5. cGastrointestinal, peritoneal, and faecal samples
  6. dRestricted to cases with both pulmonary and extrapulmonary disease
  7. ep value was determined by the Mann–Whitney U test
  8. fDiarrhoea, vomiting, and abdominal pain
  9. gResistance to at least both isoniazid and rifampicin