Table 1.
Characteristics of patients who did and did not receive USFNB.
| Variables | USFNB (n = 66) |
Standard Care (n = 541) |
p-Value |
|---|---|---|---|
| Mean (SD) age (years) | 80.30 (8.62) | 79.69 (8.33) | 0.579 |
| Women, % (n) | 66.67 (44) | 65.99 (357) | 0.913 |
| Mean (SD) BMI | 22.84 (4.49) | 23.00 (4.20) | 0.784 |
| Fracture type | 0.160 | ||
| Extracapsular, % (n) | 63.64 (42) | 54.53 (295) | |
| Intracapsular, % (n) | 36.36 (24) | 45.47 (246) | |
| Mean (SD) of initial pain score | 7.86 (0.99) | 7.36 (1.60) | 0.013 |
| Triage *, % | 0.845 | ||
| Emergent | 28.79 | 27.73 | |
| Urgent | 71.21 | 72.27 | |
| Arrival (sent by EMT), % | 46.97 | 38.45 | 0.181 |
| Comorbidity | |||
| DM, % | 30.30 | 32.35 | 0.737 |
| Hypertension, % | 66.67 | 59.89 | 0.287 |
| Cardiovascular disease, % | 21.21 | 20.70 | 0.923 |
| CKD, % | 15.15 | 10.54 | 0.259 |
| Liver disease, % | 7.58 | 7.95 | 0.916 |
| Surgical history, % | 25.76 | 23.29 | 0.656 |
| Chronic arthritis, % | 13.64 | 6.10 | 0.023 |
| Malignancy, % | 13.64 | 8.69 | 0.190 |
| Mean (SD) of CCIS | 1.41 (1.26) | 1.26 (1.33) | 0.380 |
| Chronic opioid users, % | 6.06 | 5.91 | 0.962 |
| Mortality, % | 6.06 | 2.59 | 0.116 |
* Triage is known as Australasian Triage Scale, with 1 and 2 denoting emergent and 3–5 denoting urgent. Abbreviations: BMI, body mass index; CKD, chronic kidney disease; CCIS, Charlson Comorbidity Index Score; DM, diabetes mellitus; EMT, emergency medical technician; USFNB, ultrasound-guided femoral nerve block; SD, standard deviation.