Table 3.

Comparison of bleeding quantity (mean ± SD).

		Group 1 Adding Norethisterone Acetate	Group 2 Doubling the Dose	Group 3 No Change	p-Value *
Bleeding Quantity at baseline (questionnaire 1) on a scale of 10 ˣ		4.3 ± 1.7	1.6 ± 4.1	4.0 ± 1.6	0.703 1
Difference from baseline to:	2 weeks	5.97 ± 3.39	3.75 ± 4.65	5.03 ± 3.25	0.294 2
	4 weeks	6.57 ± 3.33	4.35 ± 4.99	5.19 ± 3.56	0.091 3
	6 weeks	6.72 ± 2.86	5.39 ± 4.66	5.52 ± 3.29	0.246 4

ˣ Data analysis was conducted by correcting the five-and seven-point Likert scale responses to a ten-point scale of inverse quantity. * p value by Kruskal–Wallis (First questionnaire) and by one-way ANOVA (Subsequent questionnaires). ¹ Insignificant difference between groups 1 and 3 (p = 0.703). ² Insignificant difference between groups 1 and 3 (p = 0.294). ³ Insignificant difference between groups 1 and 3 (p = 0.094). ⁴ Insignificant difference between groups 1 and 3 (p = 0.246).