A Prospective Observational Cohort Study on Orthopaedic and Anaesthetic Registrars Performing Femoral Nerve Block on Patients with an Acute Hip Fracture

Table 2

Linear and logistic regression analyses with crude and adjusted outcomes. Potential confounders adjusted for are age, sex, ASA class, and cognitive dysfunction. Only the exposure variable (group) and confounders with values ≤ 0.05 are presented.

	Crude		Adjusted
	Est.	95% CI	Est.	95% CI
Linear regression (per unit)
Total morphine consumption (mg)
OR group	1.9	−0.6–4.4	2.4	0.0–4.9
Age	−0.3	−0.4–−0.2	−0.3	−0.4–−0.1
Cognitive dysfunction	−3.8	−6.2–−1.3	−2.8	−5.3–−0.2
Time to FNB from arrival (h)
OR group	−2.2	−2.9–−1.5	−2.2	−2.9–−1.6
ASA 3-4	0.5	−0.3–1.3	0.3	−0.5–1.0
Logistic regression (odds ratio)
Adverse event
OR group	0.7	0.4–1.4	0.8	0.4–1.5
Male sex	0.3	0.1–0.7	0.3	0.1–0.8