Table 2 ; Factors related with patients (N = 532)
Variables | Category | Frequency (n) | Percentage (%) | |
|---|---|---|---|---|
ASA Classification | ASA I | 185 | 35% | |
ASA II | 327 | 62% | ||
ASA III | 20 | 4% | ||
Previous history of SA | Yes | 199 | 37% | |
No | 333 | 63% | ||
anatomic deformity | Yes | 15 | 3% | |
No | 517 | 97% | ||
palpability of spinous | Yes | 421 | 79% | |
No | Poorly palpable | 109 | 21% | |
Not palpable | 2 | 0.4% | ||
Total | 532 | 100% | ||