Table 4 Comparison of related data during puncturing in different ages among the three groups
From: Ultrasound-assisted modified paramedian technique for spinal anesthesia in elderly
Group M | Group P | Group PM | P | |
|---|---|---|---|---|
Number of patients in different age groups | 0.970 | |||
65-74 years old | 31 (67.4) | 33 (67.3) | 34 (69.4) | |
≥ 75 years old | 15 (32.6) | 16 (32.7) | 15 (30.6) | |
First-attempt success rate | ||||
65-74 years old | 17 (54.8) | 15 (45.5) | 27 (79.4)ab | 0.014 |
≥ 75 years old | 5 (33.3) | 6 (37.5) | 11 (73.3) | 0.053 |
Number of needle redirections | ||||
65-74 years old | 2[0-3] | 1[1-2] | 0[0-1]a | 0.015 |
≥ 75 years old | 3[1-5] | 2[0.25-3.75] | 2[0-2] | 0.110 |
Number of attempts | ||||
65-74 years old | 1[1-2] | 2[1-2] | 1[1-1]b | 0.032 |
≥ 75 years old | 2[1-3] | 2[1-2] | 1[1-2] | 0.060 |
Time taken to perform spinal anesthesia(s) | ||||
65-74 years old | 105.00[43.00-147.00] | 67.00[42.50-120.50] | 54.00[29.75-63.50]a | 0.014 |
≥ 75 years old | 162.00[73.00-311.00] | 70.00[47.50-160.00] | 103.00[39.00-127.00]a | 0.040 |
Satisfaction scores | ||||
65-74 years old | 4[3-4] | 4[4-4] | 4[4-5] | 0.115 |
≥ 75 years old | 3[3-4] | 4[3-4] | 4[4-5]ab | 0.001 |