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Table 4 Predictors of pulmonary tuberculosis (PTB) among subjects identified as having cough and provided one or more sputum samples among residents of two peri-urban neighbourhoods in Karachi, May 2002-November 2002; (n = 114)

From: Hyperendemic pulmonary tuberculosis in peri-urban areas of Karachi, Pakistan

Variable

n*

PTB+(%)

Crude OR**

95% CI**

Blood in sputum

    

   Yes

32

5 (15.6)

0.98

0.27 – 3.36

   No

82

13 (15.9)

1.00

-

Night sweat

    

   Yes

43

7 (16.3)

1.06

0.33 – 3.31

   No

71

11 (15.5)

1.00

-

Weight loss

    

   Yes

78

11 (14.1)

0.68

0.22 – 2.18

   No

36

7 (19.4)

1.00

-

Presently has fever

    

   Yes

55

8 (14.6)

0.83

0.27 – 2.55

   No

59

10 (17.0)

1.00

-

Loss of appetite in last two months

    

   Yes

76

12 (15.8)

1.00

0.31 – 3.33

   No

38

6 (15.8)

1.00

-

Feeling of increased fatigue

    

   Yes

92

13 (14.1)

0.56

0.16 – 2.09

   No

22

5 (22.7)

1.00

-

  1. * n = total in given category of the variable
  2. ** OR = odds ratio; CI = confidence interval