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Table 2 Prevalence (per 100,000) (95% confidence interval) of pulmonary tuberculosis in two low-income neighborhoods in Karachi, Pakistan, May 2002–November 2002.

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

Study population subgroup Any method (18 positives) Adjusted for non-sampling of sputum samples (24 positive)
aged ≥ 15 years (n = 6083) 296 (176–467) 395 (253–587)
aged ≥ 15 years, & participated in study (n = 5479) 329 (195–519) 438 (281–651)
All identified with cough (n = 526) 3422 (2041 – 5355) 4563 (2945–6713)
Cough ≥ 2 weeks(n = 253) 7155 (4271 – 11011) 9486 (6173–13786)
Cough ≥ 2 weeks, with ≥ 1 sample (n = 114) 15790 (9635 – 23802) 21053 (13979–29686)
Cough ≥ 2 weeks, with ≥ 1 sample, with blood sputum (n = 32) 56250 (36663–73636) 75000 (56595 – 88538)