. 2017 Nov 13;58(Suppl 2):S61–S67. doi: 10.4111/icu.2017.58.S2.S61

Table 1. Urodynamic inclusion criteria for detrusor underactivity in recent studies.

Study	Sample size with DU (n)	Age (y)	DU urodynamic diagnostic criteria
Abarbanel and Marcus (2007) [29]	Male, 82; female, 99	≥70	Qmax<10 mL/s, PdetQmax <30 cmH₂O
Jeong et al. (2012) [9]	Male, 632; female, 547	>65	Male: BCI<100
Jeong et al. (2012) [9]	Male, 632; female, 547	>65	Female: PdetQmax ≤10 cmH₂O and Qmax ≤12 mL/s
Hoag and Gani (2015) [8]	Male, 25; female, 54	Mean: 59.2 (range, 19–90)	BCI<100 and absence of identifiable BOO
Gammie et al. (2016) [16]	Male, 129; female, 308	Median: male 63, female 55	Male: BCI<100, BOOI<20, BVE<90%
Gammie et al. (2016) [16]	Male, 129; female, 308	Median: male 63, female 55	Female: PdetQmax <20 cmH₂O and Q_max <15ml/s
Uren et al. (2017) [15]	Male, 29; female, 15	Mean: 64 (range, 27–88)	Male: BCI<100 and BOOI <20
Uren et al. (2017) [15]	Male, 29; female, 15	Mean: 64 (range, 27–88)	Female: PdetQmax of <20 cmH₂O and Qmax of <15 mL/s

PdetQmax, detrusor pressure at maximum flow; Qmax, maximum flow rate; BCI, bladder contractility index; BOOI, bladder outlet obstruction index; BVE, bladder voiding efficiency.

BCI=PdetQmax+5Qmax. BOOI=PdetQmax–2Qmax. BVE=(voided volume/total bladder capacity)×100.