TABLE 3.
Demographic and clinical characteristics of patients with MRSA infection among those with Staphylococcus aureus infection isolated from biological samples of patients submitted to the microbiology laboratory at Patan Hospital, Lalitpur, Nepal, 2018–2020
| Demographic and clinical characteristics | Individuals with SA n | Individuals with MRSA | Prevalence ratio (95% CI) | |
|---|---|---|---|---|
|
| ||||
| n | (%) | |||
| Total | 1804 | 1027 | (56.9) | |
| Year | ||||
| 2018 | 739 | 409 | (55.3) | Reference |
| 2019 | 722 | 440 | (60.9) | 1.10 (1.00–1.20)* |
| 2020 | 343 | 178 | (51.9) | 0.93 (0.83–1.05) |
| Sex | ||||
| Female | 916 | 530 | (57.9) | Reference |
| Male | 888 | 497 | (56.0) | 0.96 (0.89–1.04) |
| Age group, years | ||||
| <1 | 158 | 100 | (63.3) | 1.09 (0.95–1.25) |
| 1–5 | 197 | 123 | (62.6) | 1.08 (0.95–1.22) |
| 6–18 | 343 | 180 | (52.5) | 0.90 (0.80–1.02) |
| 19–35 | 650 | 377 | (57.9) | Reference |
| 36–50 | 210 | 117 | (55.7) | 0.96 (0.83–1.10) |
| 51–65 | 139 | 72 | (51.8) | 0.89 (0.75–1.06) |
| >65 | 107 | 58 | (54.2) | 0.93 (0.77–1.12) |
| Hospitalisation | ||||
| Inpatients | 514 | 142 | (27.6) | Reference |
| Outpatients | 1202 | 796 | (66.2) | 2.38 (2.05–2.75)* |
| Unknown | 88 | 88 | (100) | 1 (NE) |
| Specimen | ||||
| Blood | 114 | 53 | (46.5) | 0.80 (0.65–0.98)* |
| Body fluid | 8 | 4 | (50.0) | 0.86 (0.43–1.73) |
| Body swab | 65 | 32 | (49.2) | 0.85 (0.66–1.09) |
| Catheter tips | 3 | 3 | (100.0) | 1 (NE) |
| Genital swab | 9 | 2 | (22.2) | 0.38 (0.11–1.30) |
| Pus | 1560 | 902 | (57.8) | Reference |
| Respiratory sample | 31 | 24 | (77.4) | 1.33 (1.10–1.62)* |
| Tissue | 1 | 1 | (100.0) | 1 (NE)† |
| Urine | 13 | 6 | (46.2) | 0.79 (0.44–1.43) |
* P < 0.05.
MRSA = methicillin-resistant Staphylococcus aureus; CI = confidence interval; NE = not estimated.