Table 1.

Demographic, clinical and stop signal task (SST) data for participants.

Group	LPE (n = 38)	HC (n = 30)
Age (years)	30.53 ± 5.06	31.33 ± 2.77
	range: 21–45	range: 24–37
IIEF-5 score	23.87 ± 0.93	24.23 ± 0.89
IELT (min)	0.62 ± 0.28	10.73 ± 6.10***
PEDT score	17.50 ± 1.96	0.80 ± 1.40***
Duration (year)	5.54 ± 3.53	0
SST performance
Correct Go reaction time (ms)	561.50 ± 92.05	540.28 ± 120.61
Percentage of Go discrimination errors	0.01 ± 0.01	0.01 ± 0.02
Percentage of Go miss errors	0.01 ± 0.02	0.01 ± 0.03
Percentage of successful inhibition	0.52 ± 0.11	0.49 ± 0.15
Mean stop signal delay (ms)	267.68 ± 75.91	256.60 ± 95.88
Stop signal reaction time (ms)	277.7 ± 33.39	269.98 ± 32.64

Data were presented as mean ± SD. HC, healthy control; IELT, intravaginal ejaculatory latency time; IIEF-5, International Index of Erectile Function-5; LPE, lifelong premature ejaculation; PEDT, Premature ejaculation diagnostic tool. ***P < 0.0001 by independent samples t-test.