Table 4 Pain scores before and during PSA with N₂O by frequent procedure (median and IQR)

Procedures (n)	Preprocedural pain score		Intraprocedural pain score
Procedures (n)	Median	IQR	Median	IQR
Laceration repair (37)	20	10–45	0	0–40
Fracture reduction (31)	35	20–70	30	0–70
Intravenous line insertion (15)	30	0–95	0	0–20
Application plaster/backslab (15)	70	20–100	10	0–60

IQR, interquartile range; N₂O, nitrous oxide; PSA, procedural sedation and analgesia.