Table 2 Baseline characteristics for the high risk patients who injected hCG (n = 353) and either developed (n = 40) or did not develop severe OHSS (n = 313)
|  | N = 313 patients without severe OHSS | N = 40 patients with severe OHSS | p |
|---|---|---|---|
Age (years) | 32.6 ± 4.4 | 32.7 ± 4.0 | 0.960 |
BMI (kg/m2) | 23.8 ± 4.8 | 24.8 ± 5.2 | 0.896 |
Duration of infertility (years) | 3.8 ± 3.8 | 10.6 ± 1.4 | 0.958 |
Number of previous IVF attempts | 1.1 ± 1.8 | 1.18 ± 1.93 | 0.084 |
Baseline FSH (IU/l) | 6.7 ± 1.6 | 5.3 ± 1.4 | 0.008 |
Baseline LH(IU/l) | 5.4 ± 2.5 | 5.6 ± 2.2 | 0.229 |
Baseline oestradiol (pg/ml) | 32.9 ± 14.5 | 51.8 ± 27.0 | 0.652 |
Baseline progesterone (ng/ml) | 0.51 ± 0.28 | 0.45 ± 0.23 | 0.157 |
Baseline TSH (mIU/ml) | 1.7 ± 0.99 | 1.71 ± 0.92 | 0.763 |
Baseline prolactin (ng/ml) | 16.7 ± 11.3 | 16.2 ± 10.5 | 0.566 |