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Table 4 Adolescent girls’ knowledge about menstrual physiology and knowledge of recommended menstrual management practices before and after the intervention in four urban and rural schools of Bangladesh, 2018 (Reported)

From: Evaluation of a menstrual hygiene intervention in urban and rural schools in Bangladesh: a pilot study

Indicators Baseline
n (%)
Endline
n (%)
Prevalence difference (PD) and 95%CI
Knowledge about menstrual physiology:    
Mentioned 12 years as the average age of menarche in Bangladesh 217 (41) 199 (38) -3 (−7, 0)
Mentioned “to shed the lining of the uterus” as reason for the menstrual period 95 (18) 190 (36) 18 (9, 26)
28 days as average length of the menstrual cycle 113 (21) 287 (54) 31 (15, 48)
3–7 days as typical duration of each period of bleeding 379 (72) 343 (65) −7 (−14, 0)
Girls could identify all parts of the female reproductive systema 4 (1) 70 (13) 18 (6, 31)
Girls responded with 4 out of 5 above responses as correct (Excluding Girls could identify all parts of the female reproductive system) 10 (2) 53 (10) 8 (5, 11)
Knowledge about recommended menstrual management practices:    
Knew at least 3 methodsb for reducing pain or physical discomfort during menstruation 52 (10) 149 (28) 19 (13, 24)
“Wash with water and soap and dried under sunlight” as recommended method to wash and dry reusable menstrual materials 276 (52) 463 (88) 33 (29, 38)
“Dispose in the waste bin/burned/bury or used chute disposal system” as appropriate disposal methods for disposing of single-use menstrual materials 410 (78) 519 (98) 27 (7, 46)
“At least every 6 hours” as appropriate frequency of changing menstrual materials 333 (63) 447 (85) 21 (10, 32)
Girls who correctly responded to 3 out of the 4 items above 183 (35) 422 (80) 45 (40, 51)
  1. aOvaries, fallopian tubes, uterus, and vagina
  2. bRecommended methods were pain medication, exercise, hot fomentation