Table 1 Clinical characteristics of patients with pneumococcal pneumonia according to penicillin susceptibility.
Penicillin-Susceptible strains N = 77 | Penicillin-Resistant strains N = 27 | P-value* | Overall Strains N = 104 | |
|---|---|---|---|---|
Age (yrs), mean (SD) | 70.3 (11.8) | 76.4 (9.5) | 0.018 | 71.9 (11.6) |
Sex: | ||||
Male | 56 (72.7) | 19 (70.4) | 0.814 | 75 (72.1) |
Female | 21 (27.3) | 8 (29.6) | 29 (27.9) | |
Underlying conditions | ||||
Chronic pulmonary disease | 26 (33.8) | 9 (33.3) | 0.967 | 35 (33.7) |
Chronic hearth disease | 18 (23.4) | 8 (29.6) | 0.519 | 26 (25) |
Diabetes Mellitus | 15 (19.5) | 7 (25.9) | 0.480 | 22 (21.2) |
Stroke | 5 (6.5) | 2 (7.4) | 0.870 | 7 (6.7) |
Chronic liver disease | 7 (9.1) | 2 (7.4) | 0.949 | 9 (8.7) |
Chronic renal disease | 10 (13.0) | 7 (25.9) | 0.118 | 17 (16.3) |
Cancer | 8 (10.4) | 4 (14.8) | 0.536 | 12 (11.5) |
Alcoholism | 11 (14.3) | 0 (0) | 0.038 | 11 (10.6) |
Smoker | 25 (32.5) | 5 (18.5) | 0.169 | 30 (28.8) |
Corticosteroid therapy | 3 (3.9) | 3 (11.1) | 0.166 | 6 (5.8) |
Risk strata of patients | ||||
High | 21 (27.2) | 10 (37) | 0.477 | 31 (29.8) |
Moderate | 36 (46.8) | 10 (37) | 0.516 | 46 (44.2) |
Low | 20 (26) | 7 (25.9) | 0.802 | 27 (26.0) |
PSI classes | ||||
PSI I-III | 18 (23.4) | 7 (25.9) | 0.790 | 25 (24.1) |
PSI IV-V | 59 (76.6) | 20 (74.1) | 79 (75.9) |