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. 2015 Mar 31;10(3):e0121265. doi: 10.1371/journal.pone.0121265

Table 4. Summary of postoperative outcomes.

Outcome No. of studies Trial size EP/OP WMD(95% CI) P value Heterogeneity Favors
I2 P value
IPSS 3 mo HoLEP vs OP 6, 21, 35 133/127 0.29 [-0.36, 0.93] 0.38 30% 0.24 None
IPSS 3 mo BEEP vs OP 22, 23, 25 160/155 0.15 [-0.45, 0.75] 0.63 0% 0.84 None
IPSS 3 mo total 6, 21–23, 25, 35 293/282 0.21 [-0.23, 0.65] 0.34 0% 0.65 None
IPSS 6 mo HoLEP vs OP 35 60/60 -0.40 [-1.50, 0.70] 0.48 / / None
IPSS 6 mo BEEP vs OP 22, 24, 25 191/189 0.04 [-0.52, 0.59] 0.90 0% 0.95 None
IPSS 6 mo total 22, 24, 25, 35 251/249 -0.05 [-0.55, 0.44] 0.83 0% 0.90 None
IPSS 12 mo HoLEP vs OP 6, 35 101/99 0.00 [-0.64, 0.65] 0.99 0% 0.97 None
IPSS 12 mo BEEP vs OP 22–25 237/233 -0.15 [-0.50, 0.21] 0.42 0% 0.98 None
IPSS 12 mo total 6, 22–25, 35 338/332 -0.11 [-0.42, 0.20] 0.48 0% 1.00 None
Qmax 3 mo HoLEP vs OP 6, 21, 35 133/127 -0.35 [-2.51, 1.81]* 0.79 21% 0.28 None
Qmax 3 mo BEEP vs OP 22, 23, 25 160/155 -0.70 [-3.08, 1.68]* 0.56 77% 0.01 None
Qmax (mL/s) 3 mo total 6, 21–23, 25, 35 293/282 -0.65 [-2.28, 0.98]* 0.44 64% 0.02 None
Qmax 6 mo HoLEP vs OP 35 60/60 2.90 [0.67, 5.13] 0.01 / / HoLEP
Qmax 6 mo BEEP vs OP 22, 24, 25 191/189 0.45 [-0.89, 1.78] 0.51 0% 0.92 None
Qmax 6 mo total 22, 24, 25, 35 251/249 1.09 [-0.05, 2.24] 0.06 17% 0.31 None
Qmax 12 mo HoLEP vs OP 6, 35 101/99 -1.53 [-3.40, 0.34] 0.11 0% 0.62 None
Qmax 12 mo BEEP vs OP 22–25 237/233 -0.31 [-1.40, 0.78] 0.58 0% 0.47 None
Qmax 12 mo total 6, 22–25, 35 338/332 -0.62 [-1.56, 0.32] 0.20 0% 0.55 None
QoL 3 mo HoLEP vs OP 6,21 73/67 0.24 [-0.06, 0.53]* 0.11 71% 0.06 None
QoL 3 mo BEEP vs OP 22, 23, 25 160/155 -0.15 [-0.37, 0.07]* 0.19 0% 0.75 None
QoL3 mo total 6, 21–23, 25 233/222 0.05 [-0.18, 0.27]* 0.69 63% 0.03 None
QoL 6 mo HoLEP vs OP / / / / / / /
QoL 6 mo BEEP vs OP 22, 24, 25 191/189 -0.07 [-0.32, 0.19] 0.60 0% 0.94 None
QoL 6 mo total 22, 24, 25 191/189 -0.07 [-0.32, 0.19] 0.60 0% 0.94 None
QoL 12 mo HoLEP vs OP 6 41/39 -0.07[-0.46, 0.32] 0.72 / / None
QoL 12 mo BEEP vs OP 22–25 240/233 -0.08 [-0.25, 0.09] 0.38 0% 0.74 None
QoL 12 mo total 6, 22–25 281/272 -0.08 [-0.23, 0.08] 0.35 0% 0.87 None
PVR 3 mo HoLEP vs OP 21, 35 92/88 -0.75 [-10.93, 9.43]* 0.88 83% 0.02 None
PVR 3 mo BEEP vs OP 22, 23, 25 160/155 -0.46 [-2.27, 1.35]* 0.62 0% 0.89 None
PVR (mL) 3 mo total 21–23, 25, 35 252/243 -0.47 [-3.32, 2.38]* 0.75 35% 0.19 None
PVR 6 mo HoLEP vs OP 35 60/60 2.30 [-0.87, 5.47] 0.16 / / None
PVR 6 mo BEEP vs OP 22, 24, 25 191/189 -0.29 [-1.64, 1.07] 0.68 0% 0.99 None
PVR 6 mo total 22, 24, 25, 35 251/249 0.11 [-1.13, 1.36] 0.86 0% 0.54 None
PVR 12 mo HoLEP vs OP 35 60/60 -0.60 [-5.85, 4.65] 0.82 / / None
PVR 12 mo BEEP vs OP 22–25 237/233 -0.20 [-1.39, 0.99] 0.74 0% 0.61 None
PVR 12 mo total 22–25, 35 297/293 -0.22 [-1.38, 0.94] 0.71 0% 0.76 None
IIEF-5 3 mo EP vs OP 6, 22 84/79 0.47 [-0.64, 1.59] 0.41 0% 0.68 None
IIEF-5 6 mo EP vs OP 6, 22, 24 162/158 -0.44[-2.03, 1.14]* 0.58 61% 0.08 None
IIEF-5 12 mo EP vs OP 6, 22, 24 161/157 1.00[0.21, 1.78] 0.01 9% 0.33 EP
IIEF-5 24 mo EP vs OP 6, 24 121/119 0.89 [-0.01, 1.80] 0.05 0% 0.62 None

*Using a random effect model;

EP = endoscopic enucleation of the prostate; OP = open prostatectomy; WMD = weighted mean difference; HoLEP = holmium laser enucleation of the prostate; BEEP = bipolar electrosurgical enucleation of the prostate; IPSS = International Prostate Symptom Score; Qmax = maximum flow rate; QoL = quality of life; PVR = post-void residual urine volume; IIEF-5 = International Index of Erectile Function; mo = month.