Skip to main content

Table 2 Comparison of AVV reported by 48-h VD and UF in the entire study population and stratified according to the age, LUTD subtypes, and sex

From: Correspondence of uroflowmetry and voiding diary in evaluation of voiding volume in children with lower urinary tract dysfunction

  Pts (n) UF-AVV median (min–max) VD-AVV median (min–max) P value
All Pts. (ml) 242 178.0 (51.5–579.7) 124 (28.5–521.4)  < 0.001*
(VV/EBC) (%)   64.2 (20.9–182.9) 42.8 (7.3–144.8)  
Age
5–6 years (ml) 56 136.8 (51.5–265) 102.1 (29.6–222.5)  < 0.001*
(VV/EBC) (%)   65.5 (28.6–147.2) 48.6 (14.1–123.6)  
7–11 years (ml) 132 175.9 (65.6–439) 116.0 (33.1–521.4)  < 0.001*
(VV/EBC) (%)   60.8 (20.9–182.9) 41.9 (11–144.8)  
 ≥ 12 years (ml) 54 310.7 (145.7–579.7) 207.8 (28.5–500)  < 0.001*
(VV/EBC) (%)   69.2 (28.6–148.6) 40.9 (7.3–128.2)  
P value*   0.263** 0.410**  
OAB (ml) 120 166.8 (51.5–493.7) 112 (28.5–500)  < 0.001*
(VV/EBC) (%)   58.3 (20.9–126.6) 36.9 (7.3–128.2)  
DV (ml) 86 230 (75.5–579.7) 155.7 (45.4–521.4)  < 0.001*
(VV/EBC) (%)   72.9 (27.4–182.9) 47.5 (15.1–144.8)  
MNE 36 173.1 (65.7–366) 139.6 (61.5–232.3)  < 0.001*
(VV/EBC) (%)   64.6 (24.3–147.2) 51.1 (22.2–77.2)  
P value*   0.001**  < 0.001**  
Sex
Boy (ml) 100 178.8 (80.5–412.5) 117.9 (29.6–500)  < 0.001*
(VV/EBC) (%)   61.8 (31.1–163.1) 40.7 (14.1–128.2)  
Girl (ml) 142 178 (51.5–579.7) 128.3 (28.5–521.4)  < 0.001*
(VV/EBC) (%)   68.2 (20.9–182.9) 45.0 (7.3–144.8)  
P value*   0.991** 0.220**  
  1. Pts: Patients, AVV: average voided volume, UF: uroflowmetry, VD: voiding diary, VV: voided volume, Med: median, EBC: estimated bladder capacity, LUTD: lower urinary tract dysfunction, OAB: overactive bladder, DV: dysfunctional voiding, MNE: monosymptomatic nocturnal enuresis 
  2. Bold values indicate P value < 0.05
  3. *Mann–Whitney test, ** Kruskal–Wallis test