Table 1.
Prevalence of MRSA and MSSA isolated from Peshawar region of Khyber Pakhtunkhwa, Pakistan
| Variables | S. aureus (N) | MRSA n (%) | MSSA n (%) | X 2 | OR | 95 % Confidence interval | p value | |
|---|---|---|---|---|---|---|---|---|
| Lower limit | Upper limit | |||||||
| Age (years) | ||||||||
| 1–9 | 66 | 25 (37.9) | 41 (62.1) | 0.122 | 1.10 | 0.6257 | 1.9593 | 0.727 |
| 10–19 | 20 | 7 (35) | 13 (65) | 0.011 | 0.95 | 0.3666 | 2.4663 | 0.918 |
| 20–29 | 40 | 19 (47.5) | 21 (52.5) | 2.643 | 1.74 | 0.8872 | 3.425 | 0.104 |
| 30–39 | 34 | 11 (32.3) | 23 (67.7) | 0.232 | 0.83 | 0.3862 | 1.7796 | 0.631 |
| 40–49 | 22 | 6 (27.3) | 16 (72.7) | 0.802 | 0.64 | 0.2435 | 1.7003 | 0.371 |
| 50–59 | 28 | 17 (60.7) | 11 (39.3) | 8.193 | 3.09 | 1.3855 | 6.8953 | 0.004 |
| 60–69 | 40 | 10 (25) | 30 (75) | 2.481 | 0.54 | 0.2548 | 1.169 | 0.115 |
| 70–79 | 30 | 6 (20) | 24 (80) | 3.763 | 0.40 | 0.1609 | 1.0342 | 0.052 |
| 280 | 101 (36.1) | 179 (63.9) | ||||||
| Sex | ||||||||
| Male | 182 | 62 (34) | 120 (66) | 0.906 | 0.78 | 0.4705 | 1.2984 | 0.341 |
| Female | 98 | 39 (39.8) | 59 (60.2) | |||||
| Specimen | ||||||||
| Pus | 120 | 44 (36.7) | 76 (63.3) | 0.032 | 1.04 | 0.6393 | 1.7119 | 0.857 |
| Blood | 82 | 40 (48.8) | 42 (51.3) | 8.122 | 2.14 | 1.2618 | 3.6258 | 0.004 |
| Throat | 46 | 8 (17.4) | 38 (82.6) | 8.329 | 0.32 | 0.1425 | 0.7147 | 0.004 |
| Tissues | 20 | 4 (20) | 16 (80) | 2.412 | 0.42 | 0.1365 | 1.2929 | 0.120 |
| Fluids | 12 | 5 (41.7) | 7 (58.3) | 0.170 | 1.27 | 0.3954 | 4.142 | 0.680 |
| Type | ||||||||
| Community acquired | 50 | 21 (42) | 29 (58) | 0.93 | 1.36 | 0.7277 | 2.5334 | 0.330 |
| Hospital acquired | 230 | 80 (34.8) | 150 (65.2) | |||||
N total numbers of S. aureus isolations; X 2 Chi square; OR Odd ratio
p value <0.05 is considered as statistically significant