Demographic characteristics of continuous treatment group and discontinuous treatment group
| Variable | Continuous treatment group n=187 | Discontinuous treatment group n=88 | P value |
| Male age (years) | 30.44±3.93 | 30.70±3.88 | 0.600 |
| Female age (years) | 29.34±3.42 | 29.50±4.12 | 0.739 |
| Type of infertility n (%) | |||
| Primary infertility | 132 (70.6) | 56 (63.6) | 0.248 |
| Secondary infertility | 55 (29.4) | 32 (36.4) | |
| Female BMI | 24.19±3.88 | 24.92±3.51 | 0.135 |
| Endometrial thickness (mm) | 11.37±2.40 | 11.04±2.45 | 0.287 |
| Endometrial classification, n (%) | |||
| A | 111 (59.4) | 51 (58.0) | 0.461 |
| B | 71 (38.0) | 32 (36.4) | |
| C | 5 (2.7) | 5 (5.7) | |
| Semen volume before treatment (mL) | 3.10±1.34 | 3.19±1.29 | 0.592 |
| Sperm density before treatment (×106 /mL) | 81.23±55.25 | 79.95±56.30 | 0.859 |
| Percentage of forward motile sperm before treatment (%) | 48.43±13.78 | 47.65±11.20 | 0.643 |
| Sperm density after treatment (×106 /mL) | 86.98±55.96 | 83.72±53.40 | 0.648 |
| Percentage of forward motile sperm after treatment (%) | 97.70±3.54 | 97.66±3.82 | 0.939 |
| Duration of infertility n (%) | |||
| ≤2 years | 64 (34.2) | 29 (33.0) | 0.295 |
| 2–5 years | 89 (47.6) | 36 (40.9) | |
| ＞5 years | 34 (18.2) | 23 (26.1) | |
| Infertility factorsn, n (%) | |||
| Ovulation disorders | 92 (49.2) | 42 (47.7) | 0.830 |
| Unexplained infertility | 48 (25.7) | 24 (27.3) | |
| Tubal problems | 21 (11.2) | 9 (10.2) | |
| Male factor | 11 (5.9) | 8 (9.1) | |
| Cervical factors | 15 (8.0) | 5 (5.7) | |
BMI, body mass index.