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Table 1 Summary of epidemiological data used to evaluate the importance of diabetes as a risk factor for tuberculosis in India in 2000 for adults aged 25 years and over

From: Diabetes and tuberculosis: the impact of the diabetes epidemic on tuberculosis incidence

 

UN population estimate12 (A)

Diabetes prevalence*3 % (B)

Estimated number with diabetes (A × B)

Number of pulmonary tuberculosis incident cases

Number of smear-positive tuberculosis incident cases

RR*§ for pulmonary tuberculosis†17 (95% CI)

RR*§ for smear-positive tuberculosis17 (95% CI)

Total

481,573,000

4.3

20,707,639

939,064

575,900

5.1 (1.7 – 15.8)

7.1 (2.9 – 17.2)

Women (age in years):

       

   25–29

40,462,000

2.1

849,702

59,738

34,834

7.8 (1.2 – 51.3)

6.6 (1.7 – 26.6)||

   30–39

68,472,000

3.5

2,396,520

91,688

54,629

10.0 (6.8 – 14.5)

6.6 (1.7 – 26.6)||

   40–49

50,913,000

4.7

2,392,911

49,159

31,084

4.7 (3.6 – 6.2)

12.7 (7.4 – 21.6)

   50–59

35,327,000

5.1

1,801,677

28,220

17,710

2.3 (1.8 – 2.9)

5.2 (3.1 – 8.7)

   60+

39,789,000

6.9

2,745,441

19,708

12,548

1.8 (1.1 – 2.9)

4.0 (1.4 – 11.4)

Men (age in years):

       

   25–29

43,998,000

2.1

923,958

108,527

63,283

7.8 (1.2 – 51.3)

6.6 (1.7 – 26.6)||

   30–39

74,585,000

3.5

2,610,475

205,044

123,081

10.0 (6.8 – 14.5)

6.6 (1.7 – 26.6)||

   40–49

55,434,000

4.7

2,605,398

166,705

105,841

4.7 (3.6 – 6.2)

12.7 (7.4 – 21.6)

   50–59

35,796,000

5.1

1,825,596

118,990

74,500

2.3 (1.8 – 2.9)

5.2 (3.1 – 8.7)

   60+

36,797,000

6.9

2,538,993

91,286

58,391

1.8 (1.1 – 2.9)

4.0 (1.4 – 11.4)

  1. *Age-specific only; see Methods
  2. Smear-positive plus smear-negative
  3. See Appendix for calculations
  4. §Relative risk of incident TB associated with baseline diabetes
  5. ||As no RR was available for smear-positive TB incidence for the age band 25–29, the RR for 30–39 was used