Table 7. Severity of symptoms and intake of anti-symptomatic drugs grouped by cluster.

	Cluster 1 (n1 = 27)		Cluster 2 (n2 = 23)		Cluster 3 (n3 = 21)		p-value
Average RMS total period-40 days (mean, SD)	1.75	0.33	0.14	0.20	0.90	0.46	<0.001
Average ARTSS total period-40 days (mean, SD)	0.57	0.35	0.26	0.21	0.46	0.31	0.001
Average ACS total period-40 days (mean, SD)	4.51	3.09	1.81	1.35	3.62	2.29	<0.001

Note: Data are summarized as mean and standard deviation (SD). The p-values are computed by one-way ANOVA, when conditions were met, or Kruskal-Wallis test.