Table 1.
Demographic and systemic characteristics of study subjects
| Group 1 (n=53) | Group 2 (n=55) | Total (n=108) | P-value | |
|---|---|---|---|---|
| Sex | P=0.52 | |||
| Male | 35 (66%) | 33 (60%) | 68 (63%) | |
| Female | 18 (34%) | 22 (40%) | 40 (37%) | |
| Age, mean ± standard deviation (range) | 31.72±14.926 (8–69) | 32,647±16,723 (3–64) | 32.1±15.797 (3–69) | P=0.81 |
| 2 (3.8%) | 6 (10.9%) | 8 (7.4%) | ||
| <10 yrs | 13 (24.5%) | 9 (16.4%) | 22 (20.4%) | |
| 10–20 yrs | 23 (43.4%) | 21 (38.2%) | 44 (40.7%) | |
| 20–40 yrs | 14 (26.4%) | 17 (30.9%) | 31 (28.7%) | |
| 40–60 yrs | 1 (1.9%) | 2 (3.6%) | 3 (2.8%) | |
| >60 yrs | ||||
| Risk factors | P=0.65 | |||
| None | 39 (73.6%) | 42 (76.4%) | 81 (75%) | |
| DM | 1 (1.9%) | 1 (1.8%) | 2 (1.9%) | |
| Urinary infection | 2 (3.8%) | 1 (1.8%) | 3 (2.8%) | |
| Immunosuppressors | 1 (1.9%) | 0 (0%) | 1 (0.9%) | |
| Sinusitis | 2 (3.8%) | 4 (7.3%) | 6 (5.6%) | |
| Pregnancy | 0 (0%) | 1 (1.8%) | 1 (0.9%) | |
| Others* | 8 (15.1%) | 6 (10.9%) | 14 (13.0%) | |
Notes: Data are shown as number and percentage in parentheses, unless otherwise stated. Group 1, standard pars plana vitrectomy with intravitreal antibiotics; Group 2, pars plana vitrectomy with intravitreal antibiotics and silicone tamponade.
Chronic bronchitis, dental decay, history of skin infection, history of chronic colitis, liver calcified nodule. Immunosuppressors: cyclosporine A for kidney diseases. The table shows the demographic and systemic characteristics of study subjects. There was no difference between two groups in terms of age (P=0.81), sex (P=0.52), or systemic risk factors (P=0.65), but there were more males overall (68/108, P<0.001). BEE commonly occurred in young people with mean age of 32 years and with age group of 20–40 years accounting for 40.7% of subjects. Among the 108 subjects, systemic risk factors were found in only 25% of cases, the remaining 75% were previously healthy. There were two cases of urinary infection where urine culture revealed Aeromonas hydrophila (which coincided with the ocular culture results). Blood culture was not performed in any patient because none were febrile during their hospitalization. X-ray discovered six cases of sinusitis, eight cases of chronic bronchitis. Ultrasound found only one case with liver calcified nodule. Internal consultation revealed two patients with dental decay, one patient with history of previous skin infection, three patients with a history of chronic colitis.
Abbreviations: DM, diabetes mellitus; BEE, bacterial endogenous endophthalmitis; yrs, years; n, number of subjects.