Table 3

Response characteristics (n=3358)

CharacteristicTotalCommGPGUMCASHp Value
NMissing
Percentage of total33582.5%3.5%70.5%23.5%
Mean age in years (SD)25.9 (9.4)2%30.8 (8.8)25.4 (7.0)27.4 (9.9)21.4 (6.0)<0.001*
Sex1%
 Female58%15%79%53%72%<0.001
Ethnicity1%
 White90%99%90%90%88%
 Other10%1%10%10%12%<0.001
Sexual preference2%
 Heterosexual82%20%89%80%95%
 Homosexual13%71%3%14%4%
 Bisexual4%7%8%5%1%
 Prefer not to say1%2%0%1%0%<0.001
Highest qualification2%
 None8%4%1%7%14%
 GCSE/O level25%16%11%21%41%
 A level24%27%23%24%25%
 NVQ/City & Guilds5%5%3%6%3%
 Diploma8%10%12%9%4%
 Degree20%16%40%23%9%
 Post-graduate8%23%10%10%3%<0.001
Employment2%
 Student31%18%35%28%40%
 Employed49%54%42%49%48%
 Self-employed9%10%6%11%4%
 Unemployed8%2%10%9%7%
 Retired1%0%1%1%0%
 Other2%1%5%3%1%<0.001
No. of previous STI tests3%
 None53%31%49%48%79%
 131%43%30%32%27%
 211%14%16%13%3%
 >25%12%5%7%1%<0.001
Previous STI treatments3%
 None80%74%89%77%89%
 116%24%10%18%10%
 22%1%1%3%1%
 >22%1%0%2%0%<0.001
Believes has STI symptoms6%
 Yes19%14%14%24%8%<0.001
Completed DCE questions29 8591%
  • Some numbers do not sum exactly to 3358 or 100% due to missing values and/or rounding.

  • * Kruskal–Wallis.

  • χ2; Comm, community; CASH, contraceptive advice and sexual health service; GUM, genitourinary medicine; GP, general practice.

  • DCE, discrete choice experiment; STI, sexually transmitted infection.