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Table 2 Diagnostic accuracy parameters of pictorial blood assessment chart (PBLAC) in the diagnoses for objective heavy menstrual bleeding (MBL 80 mL)

From: Pictorial blood loss assessment chart for quantification of menstrual blood loss: a systematic review

Study Number PBLAC cutoff point (in mL) Sanitary product MBL > 80 mL (%) Sensitivity (%) Specificity (%) +LR −LR DOR
Higham et al. [4] 122 100 Tampax Fems super plus tampons and Kotex Simplicity size 2 towels 50 86 89 7.8 0.16 50.1
Janssen et al. [3] 288 100 Kotex Maxi Long Pads (Kimberly Clark, Veenendaal, Holland), Tampax super tampons (Unicura, Zoetermeer, Holland) 31 98 64 2.7 0.04 76.7
Deeny et al. [8] 53 100 Women used their customary sanitary material 47 88 52 1.8 0.23 8.0
Barr et al. [9] 281 50 Sanitary wear not specified 12 58 88 4.8 0.48 10.1
Reid et al. [10] 103 100 Tampax super (Tambrands, Havant, UK) and Kotex Simplicity size 2 (Kimberly Clark, Aylesford, Kent, UK) 61 97 7.5 1.1 0.40 2.6
Wyatt et al. [11] 108 80a Tampax regular, super, or super plus and Kotex Maxi super or Maxi nighttime napkins 16 86 88 7.2 0.16 45.3
Zakherah et al. [12] 197 100 Always Ultra, Proctor & Gamble, Cairo, Egypt 54 99 39 1.6 0.02 86.9
197 150 54 83 77 3.5 0.22 15.7
  1. +LR likelihood ratio for a positive test, LR− likelihood ratio for a negative test, DOR diagnostic odds ratio
  2. aIn Wyatt report, the unit of score was an estimated milliliter unlike the original PBLAC by Higham, which included absolute values