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Table 1 Demographic data of the two studied groups

From: Caudal epidural steroid injection ultrasound-guided versus fluoroscopy-guided in treatment of refractory lumbar disc prolapse with radiculopathy

Variable Group I (US) (n = 59) Group II (FL) (n = 62) t p
Age (years)
 Mean ± SD 42.53 ± 10.30 42.69 ± 10.48 0.09 0.93
 Median 42 43   NS
 Range 23–65 22–62   
BMI (kg/m2)
 Mean ± SD 30.63 ± 4.02 30.45 ± 3.92 0.24 0.81
 Median 30.5 30   NS
 Range 22–39 23.8–39.4   
Variable No % No % χ2 p
Age group
 < 40 years 25 42.4 21 33.9 0.93 0.34
 ≥ 40 years 34 57.6 41 66.1   NS
BMI
 Normal (18–25) 4 6.8 4 6.5   
 Over weight > 25–30) 24 40.7 28 45.2 0.25 0.88
 Obese (> 30) 31 52.5 30 48.4   NS
Sex
 Female 34 57.6 36 58.1 0.002 0.96
 Male 25 42.4 26 41.9   NS
  1. SD standard deviation, t independent t test, χ2 chi-squared test, NS non-significant (p > 0.05)