Table 2

Results of the ABG needle study

Results23G25Gp Value
Pain score
 1st attempt3.5 (2.7)3.4 (2.7)0.81
Difficulty score
 1st attempt3.4 (2.6)4.3 (2.4)0.057
Number of attempts
 150 (79.4%)40 (71.4%)0.19
 213 (20.6%)13 (23.2%)
 30 (0%)3 (5.4%)
Successful
 Yes58 (92.1%)51 (91.1%)1
 No5 (7.9%)5 (8.9%)
Complication
 None50 (79.4%)53 (94.6%)0.03
 Haematoma11 (17.5%)3 (5.4%)
 Tenderness1 (1.6%)0 (0%)
 Parathesia1 (1.6%)0 (0%)
  • Mean (SD) for continuous variables.

  • Value (percentage) for categorical variables.