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Demographic data for pregnant women in total and reference study population.
| Total study populationa | Reference population | ||||
|---|---|---|---|---|---|
| 1st trimester | 2nd trimester | 3rd trimester | 1st trimester | 2nd trimester | |
| Sample size (n) | 458 | 794 | 48 | 143 | 260 |
| Age (years)b | 29.16 (5.12) | 28.98 (5.19) | 28.37 (4.61) | 28.50 (5.09) | 27.79 (4.95) |
| Greek origin n (%) | 369 (80.6) | 698 (87.9) | 42 (87.5) | 114 (79.7) | 221 (85) |
aWomen with available biological samples.
bValues are expressed as mean (SD).
