| Table 1. Patient and ovarian stimulation characteristics by women´s region of residence. | |||
| Variable | Region (n=961 cycles) | p-valuea | |
| Douro Litoral (n=783) | Trás-os-Montes e Alto Douro (n=178) | ||
| Age (years) | 35±3.7 (20-40) | 34±3.6 (24-40) | 0.493 |
| Body Mass Index (Kg/m2) | 23.8±4.2 (16.2-41.7) | 24.2±4.7 (16.0-41.1) | 0.345 |
| Duration of infertility (years) | 4±2.1 (1-16) | 4.5±2.9 (1-16) | 0.170 |
| Number of previous cycles | 1.5±0.7 (1-4) | 1.3±0.5 (1-3) | 0.005 |
| Total dose of gonadotropin (IU) | 2318±1498 (200-18000) | 1938±898 (600-5400) | 0.003 |
| Duration of ovarian stimulation (days) | 9.1±1.9 (4-17) | 8.9±1.7 (6-15) | 0.097 |
| Cycles without embryo transfer | 140 (17.9%) | 40 (22.5%) | 0.156 |
Values are mean±standard deviation (minimum-maximum), or number (percentage) unless otherwise stated.
a Mann–Whitney U test or Chi-square test. A
p
<0.05 was considered statistically significant.