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Table 2 HP status at 12 months according to baseline HP status and treatment in 643 COPD patients

From: Azithromycin and risk of COPD exacerbations in patients with and without Helicobacter pylori

Baseline HP status and treatment

HP status after 12 months

Total

Negative n = 536

Positive n = 107

HP-/AZ

269 (97.1%)

8 (2.9%)

277 (100%)

HP-/PL

240 (94.9%)

13 (5.1%)

253 (100%)

Total (HP-)

509 (96.0%)

21 (4.0%)

530 (100%)

HP+/AZ

11 (20.4%)

43 (79.6%)

54 (100%)

HP+/PL

16 (27.1%)

43 (72.9%)

59 (100%)

Total (HP+)

27 (23.8%)

86 (76.2%)

113 (100%)

  1. The percentages in the table were calculated row-wise
  2. HP Helicobacter pylori, AZ azithromycin, PL placebo