Table 2.
Year-wise distribution of isolates treated with colistin and polymyxin.
| Organism | 2016–2017 | 2017–2018 | 2018–2019 | 2019–2020 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of Isolates Treated with Colistin (%) | Number of Isolates Treated with Polymyxin B (%) | Total (336) | Number of Isolates Treated with Colistin (%) | Number of Isolates Treated with Polymyxin B (%) | Total (290) | Number of Isolates Treated with Colistin (%) | Number of Isolates Treated with Polymyxin B (%) | Total (358) | Number of Isolates Treated with Colistin (%) | Number of Isolates Treated with Polymyxin B (%) | Total (455) | |
| Acinetobacter baumanii | 49 (14%) | 13 (4%) | 62 (18%) | 47 (16%) | 7 (2%) | 54 (19%) | 43 (12%) | 8 (2%) | 51 (14%) | 84 (18%) | 8 (2%) | 92 (20%) |
| E. coli | 23 (7%) | 5 (1%) | 28 (8%) | 30 (10%) | 8 (3%) | 38 (13%) | 27 (7%) | 2 (0.5%) | 29 (7.5%) | 37 (8%) | 4 (1%) | 41 (9%) |
| Enterobacter cloacae | 9 (3%) | 2 (0.5%) | 11 (3.5%) | 5 (2%) | 0 | 5 (2%) | 5 (1%) | 1 (0.2%) | 6 (1.2%) | 8 (2%) | 1 (0.2%) | 9 (2%) |
| Klebsiella pneumoniae | 112 (33%) | 45 (13%) | 157 (46%) | 129 (44%) | 40 (14%) | 169 (58%) | 173 (48%) | 39 (11%) | 212 (59%) | 210 (46%) | 30 (6%) | 240 (53%) |
| Pseudomonas aeruginosa | 61 (18%) | 17 (5%) | 78 (23%) | 20 (7%) | 4 (1%) | 24 (8%) | 46 (13%) | 14 (4%) | 60 (17%) | 67 (15%) | 6 (1%) | 73 (16%) |