Table 1.

Comparison of patient demographic, block characteristics and surgical profiles

Variables	KETAMINE group n=40	SALINE group n=40	P value
Age (in years)	24.90±4.80	25.87±5.53	0.40
Height (in cm)	155.45±3.75	156.82±4.25	0.12
Body mass index (in kg/m2)	25.47±2.18	26.27±3.16	0.19
Gestational age (in weeks)	38.77±1.36	38.8±1.69	0.94
Indication for caesarean section			0.65
Non reassuring non-stress test	11 (28)	16 (40)
Previous CS presenting in labour	8 (20)	6 (15)
Meconium stained liquor	6 (15)	6 (15)
Failed induction	6 (15)	7 (17)
Others (CPD, Malpresentation)	9 (22)	5 (13)
Onset block to T6 dermatome (in min)	2 (1–7)	2 (1–5)	0.23
Highest sensory block (dermatome)	T4 (T2–T4)	T4 (T2–T4)	0.74
Spinal injection to delivery interval (in min)	20 (13–35)	19 (14–40)	0.65
Intraoperative fentanyl needed (μg)	0 (0–0)	0 (0–40)	0.15

Values are expressed as mean±SD, number (%) or median (range).

CPD, cephalopelvic disproportion; CS, Caesarean section.