Table 1: Characteristics of Patients, Attempt Number of Spinal Anesthesia, Frequency of Postdural Puncture Headache

Aminophylline group n=80 Control group n=69 p
Age (Year) 30.1 8.5 27.9 5.7 0.3
Weight (kg) 69.2 5.4 70.7 4.7 0.05
Height (cm) 163.0 4.1 163.7 4.1 0.4
ASA I 67 (87%) 59 (81%) 0.3
II 10 (13%) 13 (18%)
Comorbidity* No 63 ( 81.8%) 61 (84.7%) 0.6
Yes 37 (18.2%) 39 (15.3%)
Attempt No 1 53 (68.8%) 45 (62.5%) 0.5
2 19 (24.7%) 22 (30.6%)
3 5 (6.5%) 5 (6.9%)
PDPH 12/80 9/69 0.6


Mean standard deviation, PDPH: Postdural Puncture Headache
*co-existing systematic disease.