Table 3.

Adverse reactions of the patients during HyCoSy and the distribution of ranks.

Classifications (ranks)	Clinical feature	number	percentage
0	no reaction or discomfort	270	36.5%
1	slight pain, less than menstrual pain	387	52.3%
2	moderate pain, exceeding menstrual cramps  but no vagal effects	50	0.067%
3	vagal effects or pain  requiring observation in a hospital	30	0.04%
4	vagal effects or pain requiring resuscitation	2	0.002%