Investigation of prostate resected weight on postoperative sexual dysfunction following transurethral resection of prostate surgery: a population-based study

Figures & data

Figure 1 Flow diagram of the study.

Abbreviation: TURP, transurethral resection of the prostate.

Figure 2 The distribution of patients’ age and intraoperative resected weight of prostate.

Table 1 General demographics and preoperative diseases

Age
Mean (SD)	69.38 (7.02)
Resected prostate weight during TURP surgery (g)
5–15	15,964 (38.40%)
15–50	21,861 (52.58%)
>50	3,749 (9.02%)
Chronic renal failure	1,276 (3.07)
Diabetes mellitus	8,616 (20.72%)
Hypertension	22,036 (53.00%)
Ischemic heart disease	10,129 (24.36%)
Obesity	111 (0.27%)

Note: Data are presented as mean ± SD or number of patients (%).

Abbreviation: TURP, transurethral resection of the prostate.

Table 2 Risk factor and postoperative sexual dysfunction

Risk factor	Postoperative sexual dysfunction		P-value
	No (N=40,406)	Yes (N=1,168)
Resected prostate weight during TURP surgery (g)			0.94
5–15	15,514 (38.40)	450 (38.53)
15–50	21,245 (52.58)	616 (52.74)
>50	3,647 (9.03)	102 (8.73)
Age	69.47 (7.00)	66.08 (7.03)	<0.01
Chronic renal failure	1,256 (3.11)	20 (1.71)	<0.01
Diabetes mellitus	8,379 (20.74)	237 (20.29)	0.71
Hypertension	21,405 (52.97)	631 (54.02)	0.48
Ischemic heart disease	9,803 (24.26)	326 (27.91)	<0.01
Obesity	101 (0.25)	10 (0.86)	<0.01

Note: Data are presented as mean ± SD or number of patients (%).

Abbreviation: TURP, transurethral resection of the prostate.

Table 3 Cox model

	Univariate analysis		Multivariate analysis
	HR (95% CI)	P-value	HR (95% CI)	P-value
TURP size (g)
5–15	–	–	–	–
15–50	0.981 (0.869, 1.108)	0.76	1.069 (0.946, 1.208)	0.29
>50	0.928 (0.749, 1.151)	0.50	1.073 (0.865, 1.332)	0.52
Age	0.941 (0.934, 0.948)	<0.001	0.938 (0.930, 0.945)	<0.01
Chronic renal failure	0.588 (0.378, 0.914)	0.02	0.638 (0.409, 0.993)	0.05
Ischemic heart disease	1.231 (1.083, 1.398)	<0.01	1.511 (1.326, 1.722)	<0.01
Obesity	3.635 (1.951, 6.774)	<0.001	3.194 (1.713, 5.956)	<0.01

Abbreviation: TURP, transurethral resection of the prostate.

Table 4 Cumulative rate of postoperative sexual dysfunction

Time	5–15 g (N=15,964)	15–50 g (N=21,861)	>50 g (N=3,749)	P-value
6 weeks	26 (0.16)	25 (0.11)	3 (0.08)	0.29
3 months	65 (0.41)	87 (0.40)	12 (0.32)	0.74
6 months	126 (0.79)	175 (0.80)	28 (0.75)	0.94
12 months	189 (1.18)	271 (1.24)	39 (1.04)	0.57
24 months	281 (1.76)	400 (1.83)	59 (1.57)	0.53
48 months	388 (2.43)	524 (2.40)	85 (2.27)	0.84
Overall	450 (2.82)	616 (2.82)	102 (2.72)	0.94