Sociodemographic characteristics of enrolled participants at Baseline by final diagnosis
| CT n (%) | NG n (%) | NSGI n (%) | NAD n (%) | Total n | |
| Age (year) | |||||
| <24 | 5 (71.43) | 1 (50) | 5 (21.74) | 3 (21.43) | 14 |
| 25–35 | 2 (28.57) | 1 (50) | 17 (73.91) | 8 (57.14) | 28 |
| >35 | 0 (0) | 0 (0) | 1 (4.35) | 3 (21.43) | 4 |
| Ethnicity | |||||
| White | 5 (71.43) | 0 (0) | 10 (43.48) | 6 (42.86) | 21 |
| Asian | 0 (0) | 1 (50) | 2 (8.7) | 2 (14.29) | 5 |
| Black | 1 (14.29) | 1 (50) | 10 (43.48) | 2 (14.29) | 14 |
| Other | 1 (14.29) | 0 (0) | 1 (4.35) | 3 (21.43) | 5 |
| Prefer not to say | 0 (0) | 0 (0) | 0 (0) | 1 (7.14) | 1 |
| Age at leaving full-time education | |||||
| 16 years or less | 0 (0) | 0 (0) | 1 (4.35) | 3 (21.43) | 4 |
| 17 or 18 years | 0 (0) | 0 (0) | 6 (26.09) | 0 (0) | 6 |
| 19 years or over | 4 (57.14) | 0 (0) | 14 (60.87) | 10 (71.43) | 28 |
| Still in full-time education | 3 (42.86) | 2 (100) | 2 (8.7) | 1 (7.14) | 8 |
| Highest educational achievement | |||||
| No qualifications/no formal qualifications | 1 (14.29) | 0 (0) | 1 (4.35) | 0 (0) | 2 |
| 1–5 General Certificates of Secondary Education (GCSEs) | 0 (0) | 0 (0) | 3 (13.04) | 2 (14.29) | 5 |
| Two or more A-levels or equivalent | 1 (14.29) | 1 (50) | 4 (17.39) | 2 (14.29) | 8 |
| Bachelor’s degree or equivalent and higher | 5 (71.43) | 1 (50) | 13 (56.52) | 8 (57.14) | 27 |
| Other | 0 (0) | 0 (0) | 2 (8.7) | 2 (14.29) | 4 |
| Do you have any long-standing condition? | |||||
| Yes | 1 (14.29) | 0 (0) | 1 (4.35) | 2 (14.29) | 4 |
| No | 6 (85.71) | 2 (100) | 22 (95.65) | 12 (85.71) | 42 |
| Previously diagnosed with CT? | |||||
| Yes | 4 (57.14) | 1 (50) | 7 (30.43) | 1 (7.14) | 13 |
| No | 3 (42.86) | 1 (50) | 16 (69.57) | 13 (92.86) | 33 |
| Previously diagnosed with NG? | |||||
| Yes | 0 (0) | 2 (100) | 2 (8.7) | 0 (0) | 4 |
| No | 7 (100) | 0 (0) | 21 (91.3) | 14 (100) | 42 |
| Previously diagnosed with NGU? | |||||
| Yes | 2 (28.57) | 0 (0) | 9 (39.13) | 3 (21.43) | 14 |
| No | 5 (71.43) | 2 (100) | 14 (60.87) | 11 (78.57) | 32 |
| Previously diagnosed with herpes/warts? | |||||
| Yes | 3 (42.86) | 0 (0) | 1 (4.35) | 2 (14.29) | 6 |
| No | 4 (57.14) | 2 (100) | 22 (95.65) | 12 (85.71) | 40 |
| Relationship status | |||||
| Married and living with wife | 0 (0) | 0 (0) | 1 (4.35) | 2 (14.29) | 3 |
| Cohabiting but not married | 1 (14.29) | 0 (0) | 2 (8.7) | 2 (14.29) | 5 |
| Separated, divorced or widowed | 0 (0) | 0 (0) | 1 (4.35) | 0 (0) | 1 |
| Single (ie, never married) | 6 (85.71) | 2 (100) | 19 (82.61) | 9 (64.29) | 36 |
| Prefer not to say | 0 (0) | 0 (0) | 0 (0) | 1 (7.14) | 1 |
| Break up in the last 30 days | |||||
| Yes | 1 (14.29) | 0 (0) | 3 (13.04) | 5 (35.71) | 9 |
| No | 6 (85.71) | 2 (100) | 20 (86.96) | 9 (64.29) | 37 |
CT, Chlamydia trachomatis; NAD, nothing abnormal detected; NG, Neisseria gonorrhoeae; NGU, non-Neisseria gonorrhoeae (non-NG)-associated urethritis; NSGI, non-specific genital infection.