Table 2.

The median (IQR) peak pain (VAS), pain duration (s) and pain area (au) after injections

	Hypertonic saline side	Control side
Peak pain
All	52.5 (38.0)	7.5 (24.0)*
Men	50.0 (30.3)	0.0 (24.3)*
Women	56.0 (50.5)	15.0 (22.0)*
Pain duration
All	345 (150)	8 (45)*
Men	405 (170)	0 (64)*
Women	315 (131)	15 (45)*
Pain area
All	54 (65.0)	0 (3.0)*
Men	46 (69.3)	0 (2.3)*
Women	60 (87.8)	0 (5.5)*

Table shows data from thirty healthy participants, 15 men and 15 aged-matched women.

IQR = interquartile range (75 percentile minus 25 percentile) VAS = 100 mm visual analogue scale * = significant difference between sides (p < 0.001). There were no significant differences between sexes.