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Table 2 Duration of menstrual bleeding before and after intervention in water intake and control groups

From: The role of water intake in the severity of pain and menstrual distress among females suffering from primary dysmenorrhea: a semi-experimental study

 

Duration of menstrual bleeding*

Control group (n = 70)

Water intake group (n = 70)

p value**

Number (%)

Number (%)

Before intervention

   

0.125

Normal

38 (54.3)

39 (55.7)

 

Abnormal

32 (45.7)

31 (44.3)

 

The first menstrual cycle after intervention

   

0.094

Normal

41 (58.6)

49 (70.0)

 

Abnormal

29 (41.4)

21 (30.0)

 

The second menstrual cycle after intervention

   

0.043

Normal

37 (52.9)

46 (65.7)

 

Abnormal

33 (47.1)

24 (34.3)

 
  1. *Normal: 4–6 days, Abnormal: ≥ 7 days
  2. **Chi-square test