TABLE 2.
Association between type of strain (sporadic, local epidemic, or endemic) and characteristic of patients
| Characteristic | Sporadic | Local epidemic | Endemic | P |
|---|---|---|---|---|
| Age (mean [95% CIa]) | 50.9 (46.9-54.8) | 53.2 (51.2-55.1) | 58.7 (57.1-60.2) | <0.001 |
| No. of patients in the following category/total no. (%): | ||||
| Gender | ||||
| Male | 79/109 (64.2) | 325/467 (69.6) | 422/676 (62.4) | 0.043 |
| Female | 39/109 (35.8) | 142/467 (30.4) | 354/676 (37.6) | |
| Department | ||||
| Internal medicine | 11/109 (10.1) | 69/467 (14.8) | 157/676 (23.2) | <0.001 |
| Surgery | 30/109 (27.5) | 174/467 (37.2) | 189/676 (27.9) | |
| Neurology | 14/109 (12.8) | 69/467 (14.8) | 118/676 (17.4) | |
| Orthopedics | 32/109 (29.3) | 104/467 (22.3) | 90/676 (13.3) | |
| Dermatology | 13/109 (11.9) | 16/467 (3.4) | 64/676 (9.5) | |
| Gynecology | 3/109 (2.8) | 11/467 (2.3) | 24/676 (3.5) | |
| Pediatrics | 5/109 (4.6) | 23/467 (4.9) | 27/676 (4.0) | |
| Psychiatry | 1/109 (0.9) | 1/467 (0.2) | 7/676 (1.0) | |
| Specimen | ||||
| Blood | 4/86 (4.7) | 33/310 (10.6) | 46/576 (8.0) | 0.166 |
| Tracheal secretion | 17/86 (19.8) | 94/326 (28.8) | 96/577 (16.6) | <0.001 |
| Wounds | 36/87 (41.4) | 126/312 (40.4) | 263/577 (45.6) | 0.300 |
| Urine | 13/88 (14.8) | 59/319 (18.5) | 76/576 (13.2) | 0.105 |
| Others | 72/97 (74.2) | 304/382 (79.6) | 457/596 (76.7) | 0.412 |
| Service | ||||
| Outpatient | 27/108 (25.0) | 71/460 (15.4) | 173/672 (25.7) | <0.001 |
| Inpatient | 55/108 (50.9) | 243/460 (52.8) | 337/672 (50.1) | |
| ICUb | 26/108 (24.1) | 146/460 (31.7) | 162/672 (24.1) | |
| Mode of acquisitionc | ||||
| Community | 36/47 (76.6) | 94/189 (49.7) | 260/443 (58.7) | 0.003 |
| Hospital | 11/47 (23.4) | 95/189 (50.3) | 183/443 (41.3) |
a
CI, confidence interval.
b
ICU, intensive care unit.
c
Only for intensive care unit and inpatients with available data.