Table 3

Multivariable analysis of return of samples

ORadj (95% CI)p Value
Kit type* <0.001
 Female-design A
 Female-design B0.96 (0.74 to 1.24)0.736
 Male STI0.63 (0.55 to 0.72) <0.001
 MSM STI1.06 (0.86 to 1.30)0.593
Place of delivery <0.001
 Clinic0.84 (0.71 to 1.00) 0.048
 Pharmacy0.53 (0.44 to 0.63) <0.001
Any symptoms reported0.77 (0.67 to 0.89) <0.001
2015 IMD rank (x10 000)†1.08 (1.01 to 1.15) 0.029
  • Results are from a multivariable binary logistic regression model, using a forwards stepwise approach. All factors in table 2a,b were considered for inclusion, as well as patient age. The questions regarding sexual infections, symptoms and statements about sexual and drug history were dichotomised into yes/no responses. The 10 transgender respondents and the 39 cases where the IMD was not available were excluded. Bold p values are significant at p<0.05.

  • *Female-design B is for respondents reporting a history of receptive anal sex.

  • †The OR represents the increase in the odds of sample return associated with an increase of 10 000 ranks of the IMD.

  • IMD, Index of Multiple Deprivation Score; MSM, men who have sex with men; ORadj, adjusted odds ratio; STI, sexually transmitted infection.