Sociodemographics and characteristics of participants with GAD-2 data included in the diagnostic accuracy analyses (n=528)
| GAD-2 negative score<3 n=409 | GAD-2 positive score≥3 n=119 | P values | Overall (total) n=528 | |
| Age (years) | 0.126 | |||
| 16–19 | 4 (1%) | 3 (3%) | 7 (1%) | |
| 20–29 | 104 (25%) | 40 (34%) | 144 (27%) | |
| 30–39 | 267 (65%) | 69 (58%) | 336 (64%) | |
| 40+ | 34 (8%) | 7 (6%) | 41 (8%) | |
| Ethnicity | 0.384 | |||
| White | 223 (55%) | 56 (47%) | 279 (53%) | |
| Black/Caribbean | 123 (30%) | 46 (39%) | 169 (32%) | |
| Asian/Asian British | 19 (5%) | 3 (3%) | 22 (4%) | |
| Mixed/multiple ethnicity | 17 (4%) | 5 (4%) | 22 (4%) | |
| Other | 27 (7%) | 9 (8%) | 36 (7%) | |
| Highest education level | 0.006 | |||
| None/school qualifications | 38 (9%) | 24 (20%) | 62 (12%) | |
| College/diploma/higher/certificate/training | 147 (36%) | 42 (35%) | 189 (36%) | |
| Degree level/postgraduate qualifications | 224 (55%) | 53 (45%) | 277 (52%) | |
| Employment status* | 0.010 | |||
| Employed | 271 (66%) | 69 (58%) | 340 (65%) | |
| Student | 19 (5%) | 2 (2%) | 21 (4%) | |
| Unemployed | 42 (10%) | 19 (16%) | 61 (12%) | |
| Homemaker | 58 (14%) | 14 (12%) | 72 (14%) | |
| Not working due to illness/other | 18 (4%) | 14 (12%) | 32 (6%) | |
| Income† | <0.001 | |||
| <£15 000 | 41 (13%) | 32 (35%) | 73 (18%) | |
| £15 000–£30 999 | 54 (17%) | 16 (17%) | 70 (17%) | |
| £31 000–£45 999 | 50 (16%) | 10 (11%) | 60 (15%) | |
| £46 000–£60 999 | 52 (16%) | 10 (11%) | 62 (15%) | |
| £61 000 or more | 119 (38%) | 24 (26%) | 143 (35%) | |
| Relationship status | <0.001 | |||
| Single | 34 (8%) | 23 (19%) | 57 (11%) | |
| Partner but not cohabiting | 57 (14%) | 22 (18%) | 79 (15%) | |
| Married/cohabiting | 313 (77%) | 70 (59%) | 383 (72%) | |
| Separated/divorced | 5 (1%) | 4 (3%) | 9 (2%) | |
| Multiparous | ||||
| No | 202 (49%) | 62 (52%) | 0.603 | 264 (50%) |
| Yes | 207 (51%) | 57 (48%) | 264 (50%) | |
| Planned pregnancy | ||||
| Yes | 280 (68%) | 67 (56%) | 0.014 | 347 (66%) |
| Late booker | ||||
| Yes | 344 (84%) | 94 (79%) | 0.191 | 438 (83%) |
| Translator required | ||||
| Yes | 25 (6%) | 13 (11%) | 0.074 | 38 (7%) |
*Two participants had missing data on employment status (1 GAD-2 positive and 1 GAD-2 negative).
†One hundred twenty participants had missing data on income (93 GAD-2 negatives, 27 GAD-2 positives).