Table 2. Univariate analysis for each bacteria.
| Factor |
a. MSSA |
b. Alpha-hemolytic streptococci |
||||
|---|---|---|---|---|---|---|
| Positive | Negative | P-value | Positive | Negative | P-value | |
| N=44 | N=946 | N=31 | N=959 | |||
| Age | 74.9±10.4 | 73.8±10.1 | 0.431 | 77.5±9.0 | 73.7±10.1 | 0.008** |
| Sex (male) | 19/25 | 377/569 | 0.753 | 14/17 | 382/577 | 0.579 |
| Hypertension | 24/20 | 509/437 | 1.000 | 21/10 | 512/447 | 0.143 |
| Diabetes | 6/38 | 200/756 | 0.261 | 10/21 | 196/763 | 0.117 |
| Oral steroids | 2/42 | 27/919 | 0.373 | 2/29 | 27/932 | 0.229 |
| Lacrimal duct obstruction | 2/42 | 29/917 | 0.644 | 2/29 | 29/930 | 0.253 |
| Glaucoma eye drops | 6/38 | 91/855 | 0.431 | 5/26 | 92/867 | 0.218 |
| Visit history to ophthalmic facilities | 33/11 | 692/254 | 0.863 | 22/9 | 703/256 | 0.837 |
| Surgical history in other departments | 3/41 | 71/875 | 1.000 | 1/30 | 73/886 | 0.723 |
|
c. Enterococcus faecalis |
d. Gram-negative bacilli |
|||||
| Positive | Negative | P-value | Positive | Negative | P-value | |
| N=36 | N=954 | N=52 | N=938 | |||
| Age | 79.0±7.7 | 73.7±10.1 | 0.001** | 76.6±7.7 | 73.7±10.2 | 0.083 |
| Sex (male) | 12/24 | 384/570 | 0.489 | 21/31 | 375/563 | 1.000 |
| Hypertension | 21/15 | 512/442 | 0.614 | 33/19 | 500/438 | 0.198 |
| Diabetes | 9/27 | 197/757 | 0.531 | 13/39 | 193/745 | 0.482 |
| Oral steroids | 1/35 | 28/926 | 1.000 | 4/48 | 25/913 | 0.061 |
| Lacrimal duct obstruction | 2/34 | 29/925 | 0.312 | 6/46 | 25/913 | 0.004** |
| Glaucoma eye drops | 3/33 | 94/860 | 1.000 | 4/48 | 93/845 | 0.811 |
| Visit history to ophthalmic facilities | 26/10 | 699/255 | 0.850 | 39/13 | 686/252 | 0.873 |
| Surgical history in other departments | 4/32 | 70/884 | 0.337 | 6/46 | 68/870 | 0.271 |
|
e. Corynebacterium species |
f. MS-CNS |
|||||
| Positive | Negative | P-value | Positive | Negative | P-value | |
| N=460 | N=530 | N=223 | N=767 | |||
| Age | 75.9±8.5 | 72.1±10.9 | 0.000** | 73.0±10.2 | 74.1±10.0 | 0.095 |
| Sex (male) | 200/260 | 196/334 | 0.044* | 110/113 | 286/481 | 0.001** |
| Hypertension | 267/193 | 266/264 | 0.015* | 122/101 | 411/356 | 0.819 |
| Diabetes | 92/368 | 114/416 | 0.583 | 53/170 | 153/614 | 0.224 |
| Oral steroids | 15/445 | 14/516 | 0.577 | 5/218 | 24/743 | 0.653 |
| Lacrimal duct obstruction | 17/443 | 14/516 | 0.365 | 6/217 | 25/742 | 0.828 |
| Glaucoma eye drops | 31/429 | 66/464 | 0.003** | 15/208 | 82/685 | 0.096 |
| Visit history to ophthalmic facilities | 337/123 | 388/142 | 1.000 | 159/64 | 566/201 | 0.492 |
| Surgical history in other departments | 39/421 | 35/495 | 0.277 | 10/213 | 64/703 | 0.060 |
|
g. MR-CNS |
||||||
| Positive | Negative | P-value | ||||
| N=135 | N=855 | |||||
| Age | 75.3±10.2 | 74.4±9.9 | 0.228 | |||
| Sex (male) | 52/83 | 344/511 | 0.777 | |||
| Hypertension | 75/60 | 458/397 | 0.711 | |||
| Diabetes | 29/106 | 177/678 | 0.820 | |||
| Oral steroids | 10/125 | 19/836 | 0.003** | |||
| Lacrimal duct obstruction | 7/128 | 24/831 | 0.177 | |||
| Glaucoma eye drops | 16/119 | 81/774 | 0.435 | |||
| Visit history to ophthalmic facilities | 109/26 | 616/239 | 0.036* | |||
| Surgical history in other departments | 20/115 | 54/801 | 0.001** | |||
Abbreviation: N, number of patients.
The data indicate real or mean±SD.
Mann–Whitney U-test was used for age, Fisher's exact test was used for others.
*P<0.05, **P<0.01.