Table 1. Participant characteristics.
| Participant characteristics | N=585 |
|---|---|
| Maternal age—mean, (IQR) | 35 years (32–39) |
| Educational level | |
| No qualification | 1% (n=6) |
| GCSE or O level | 8% (n=44) |
| GCE, a level or similar | 8% (n=46) |
| Vocational (BTEC/NVQ/diploma) | 19% (n=111) |
| Degree level or above | 64% (n=371) |
| Ethnicity | |
| White or White British | 77% (n=438) |
| Asian or Asian British | 11% (n=62) |
| Black or Black British | 7% (n=39) |
| Other ethnic group | 3% (n=17) |
| Mixed | 3% (n=15) |
| Religious faith | |
| Yes | 53% (n=302) |
| No | 47% (n=271) |
| Religion | |
| Christian | 75% (n=232) |
| Muslim | 12% (n=38) |
| Jewish | 5% (n=15) |
| Other | 3% (n=8) |
| Sikh | 2% (n=7) |
| Hindu | 2% (n=7) |
| Buddhist | 1% (n=3) |
| Religiosity | |
| Very | 20% (n=50) |
| Somewhat | 66% (n=163) |
| Not at all | 14% (n=34) |
| DSS risk | |
| Intermediate risk | 72% (n=421) |
| High risk | 28% (n=163) |
| Further testing | |
| NIPT | 94% (n=548) |
| NIPT and invasive testing | 4% (n=24) |
| No further testing | 2% (n=13) |
| NIPT on same day or different day as DSS | |
| Different day | 62% (n=357) |
| Same day | 35% (n=200) |
| Same day but chose to return | 4% (n=21) |
| Parity | |
| Parous | 54% (n=306) |
| Nulliparous | 47% (n=266) |
| DSS in previous pregnancy | |
| Yes | 75% (n=240) |
| No | 23% (n=73) |
| Not sure | 3% (n=9) |
| Have a child with Down's syndrome | |
| Yes | <1% (n=1) |
| No | 99.7% (n=329) |
| Know a child with Down's syndrome | |
| Yes | 29% (n=164) |
| No | 71% (n=393) |
Note: not all % add up to 100 owing to rounding. Not all participants answered all questions, and therefore there are some discrepancies with total numbers.