Table 1: Pain variables assessed after injection of hypertonic saline solution (58.5 mg/mL) into the masseter muscle of healthy participants. The men received an injection of 0.5 ml and the women 0.3 ml. Variables are presented as median (interquartile range).
Pain measures |
Men (n=25) |
Women (n=31) |
P-value |
Max pain intensity (VAS 0-100) |
68.0 (34.0) |
84.0 (31.5) |
0.171 |
Pain duration (s) |
300 (7.5) |
255 (180) |
<0.001 |
AUC (au) |
251100 (266400) |
133800 (184200) |
0.005 |
Pain after 300s (n) |
19 |
9 |
<0.001 |
Pain intensity at 300 s |
14.0 (54.0) |
0 (1.0) |
<0.001 |
Pain unpleasantness (VAS 0-100) |
69.0 (39.5) |
75.0 (46.0) |
0.786 |
Anxiety (VAS 0-100) |
26.0 (64.5) |
23.0 (53.0) |
0.649 |
Pain drawing area (Pixel) |
20355 (36341) |
18327 (16320) |
0.856 |
N=number of subjects, AUC = area under the curve, VAS = visual analogue scale