Table 2.
Past IVF medical history of the study participants attending ART clinics between June 2019 and September 2020 in Kazakhstan.
| Variable | All, N=446 (100%) | Public clinics, n=142 (31.8%) | Private clinics, n=304 (68.2%) | P value |
| Comorbidity, n (%) | ||||
| Yes | 174 (39.0%) | 83 (58.4%) | 91 (29.9%) | <0.001 |
| No | 272 (61.0%) | 59 (41.6%) | 213 (70.1%) | |
| Missing data=0% | ||||
| Infertility duration (years) | ||||
| Mean±SD | 5.9±3.9 | 6.0±3.5 | 5.9±4.1 | 0.75 |
| Median (IQR) | 5 (3–8) | 6 (3–8) | 5 (3–8) | |
| Missing data=5.6% | ||||
| Number of previous deliveries, n (%) | ||||
| None | 298 (67.1%) | 106 (74.6%) | 192 (63.6%) | <0.001 |
| One | 112 (25.2%) | 36 (25.4%) | 76 (25.2%) | |
| Two or more | 34 (7.7%) | 0 (0%) | 34 (11.2%) | |
| Missing data=0.5% | ||||
| Number of previous miscarriages, n (%) | ||||
| None | 384 (86.5%) | 127 (89.4%) | 257 (85.1%) | 0.21 |
| One or more | 60 (13.5%) | 15 (10.6%) | 45 (14.9%) | |
| Missing data=0.5% | ||||
| Number of previous intentional pregnancy interruptions, n (%) | ||||
| None | 404 (91.0%) | 125 (88.0%) | 279 (92.4%) | 0.14 |
| One or more | 40 (9.0%) | 17 (12.0%) | 23 (7.6%) | |
| Missing data=0.5% | ||||
| Number of previous IVF cycles, n (%) | ||||
| None | 335 (75.8%) | 106 (75.2%) | 229 (76.1%) | 0.41 |
| One | 67 (15.2%) | 25 (17.7%) | 42 (13.9%) | |
| 2 or more | 40 (9.0%) | 10 (7.1%) | 30 (10.0%) | |
| Missing data=0.9% | ||||
| Cause of infertility, n (%) | ||||
| Female | 218 (49.3%) | 57 (40.4%) | 161 (53.5%) | <0.01 |
| Male | 41 (9.3%) | 8 (5.7%) | 33 (11.0%) | |
| Mixed | 183 (41.4%) | 76 (53.9%) | 107 (35.5%) | |
| Missing data=0.9% | ||||
IVF, in vitro fertilisation.