| LCS study | Number (N = 122) | Percentage |
| Macroscopic appearance |
|
|
| Disorder | 104 | 85.25 |
| Purulent | 13 | 10.66 |
| Xantochromic | 2 | 2.46 |
| Clear | 3 | 1.64 |
| Cytology WBC (element/mm3) | ||
| 10 - 99 | 19 | 15.57 |
| 100 - 999 | 89 | 72.95 |
| >999 | 14 | 11.48 |
| Cytology PNN (%) |
|
|
| 50 - 70 | 4 | 3.28 |
| >70 | 118 | 96.72 |
| Chemistry (glycorachy: mg/dL) | ||
| 0 - 39 | 17 | 13.93 |
| 40 - 125 | 105 | 86.07 |
| Bacteriology (Direct examination) | ||
| Gram-positive bacilli | 2 | 1.63 |
| Gram-negative bacilli | 5 | 4.09 |
| Gram-positive cocci | 35 | 28.68 |
| Gram-negative cocci | 2 | 1.63 |
| Absence of germs | 78 | 63.93 |
| Bacteriology (culture) | ||
| Pneumococcus | 18 | 14.75 |
| H. influenzae | 4 | 3.27 |
| E. coli | 1 | 0.81 |
| Acinetobacter baumannii | 1 | 0.81 |
| Sterile | 84 | 68.85 |
| Not performed | 14 | 11.47 |