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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