Table 4

Subgroup preferences for STI testing characteristics

Attributes and levelsMSM*, OR (95% CI)CASH, OR (95% CI)Age, OR (95% CI)Sex§, OR (95% CI)
YesNoYesNo<25≥25 and ≤4545+MaleFemale
Time to appointment
 Drop in same day and wait1.58 (1.32 to 1.90)1.30 (1.21 to 1.40)1.17 (1.00 to 1.38)1.38 (1.28 to 1.49)1.42 (1.30 to 1.55)1.23 (1.11 to 1.37)1.58 (1.15 to 2.19)1.36 (1.23 to 1.50)1.35 (1.23 to 1.48)
 Within 24 h1.36 (1.16 to 1.60)1.26 (1.18 to 1.34)1.06 (0.92 to 1.23)1.33 (1.24 to 1.42)1.30 (1.20 to 1.41)1.22 (1.11 to 1.35)1.42 (1.06 to 1.90)1.29 (1.19 to 1.41)1.26 (1.16 to 1.37)
 Within 48 h1.01.01.01.01.01.01.01.01.0
 After 48 h but at individuals convenience1.13 (0.98 to 1.30)1.02 (0.96 to 1.07)1.07 (0.94 to 1.21)1.02 (0.97 to 1.08)1.11 (1.03 to 1.19)0.96 (0.88 to 1.04)0.96 (0.76 to 1.21)1.06 (0.98 to 1.14)1.03 (0.96 to 1.10)
Results waiting time
 Same day1.74 (1.44 to 2.09)1.66 (1.55 to 1.79)1.24 (1.06 to 1.45)1.78 (1.65 to 1.92)1.65 (1.51 to 1.80)1.59 (1.42 to 1.77)2.31 (1.68 to 3.19)1.66 (1.51 to 1.84)1.65 (1.51 to 1.81)
 3 days1.19 (1.02 to 1.38)1.27 (1.20 to 1.35)1.06 (0.93 to 1.22)1.30 (1.22 to 1.39)1.25 (1.16 to 1.35)1.25 (1.14 to 1.36)1.40 (1.09 to 1.80)1.24 (1.15 to 1.35)1.26 (1.17 to 1.36)
 7 days1.01.01.01.01.01.01.01.01.0
 21 days0.59 (0.51 to 0.70)0.63 (0.59 to 0.66)0.66 (0.58 to 0.76)0.59 (0.56 to 0.63)0.60 (0.55 to 0.65)0.64 (0.58 to 0.70)0.62 (0.49 to 0.79)0.64 (0.59 to 0.69)0.60 (0.55 to 0.64)
Comprehensive of results
 Positive results only1.01.01.01.01.01.01.01.01.0
 Positive and negative results1.15 (1.05 to 1.26)1.27 (1.22 to 1.31)1.47 (1.36 to 1.59)1.20 (1.16 to 1.24)1.25 (1.20 to 1.30)1.25 (1.19 to 1.32)1.21 (1.04 to 1.40)1.17 (1.12 to 1.23)1.30 (1.25 to 1.36)
Staff
 Without specialist STI knowledge1.01.01.01.01.01.01.01.01.0
 With specialist STI knowledge1.98 (1.81 to 2.18)2.76 (2.66 to 2.86)5.32 (4.89 to 5.78)2.18 (2.10 to 2.27)2.90 (2.79 to 3.03)2.36 (2.23 to 2.49)2.38 (2.02 to 2.80)2.23 (2.12 to 2.34)3.02 (2.88 to 3.17)
Comprehensiveness of testing
 Tests for most STIs1.01.01.01.01.01.01.01.01.0
 Tests for all STIs2.94 (2.67 to 3.22)2.13 (2.06 to 2.21)2.12 (1.96 to 2.30)2.29 (2.20 to 2.38)2.06 (1.97 to 2.15)2.49 (2.33 to 2.63)2.68 (2.27 to 3.15)2.21 (2.11 to 2.32)2.26 (2.16 to 2.36)
Results reporting method
 Phone up test centre1.01.01.01.01.01.01.01.01.0
 Post to home address0.78 (0.67 to 0.90)0.82 (0.78 to 0.86)0.79 (0.70 to 0.90)0.82 (0.77 to 0.87)0.80 (0.74 to 0.85)0.86 (0.79 to 0.94)0.68 (0.54 to 0.85)0.83 (0.77 to 0.89)0.80 (0.74 to 0.85)
 By email0.85 (0.71 to 1.02)0.96 (0.90 to 1.03)0.91 (0.78 to 1.06)0.95 (0.89 to 1.03)0.95 (0.87 to 1.03)0.97 (0.88 to 1.08)0.64 (0.48 to 0.86)0.90 (0.82 to 0.99)0.97 (0.89 to 1.06)
 Text/call to mobile phone by centre1.08 (0.92 to 1.27)1.00 (0.94 to 1.07)0.91 (0.79 to 1.04)1.04 (0.98 to 1.11)1.02 (0.94 to 1.10)1.01 (0.92 to 1.11)0.82 (0.62 to 1.10)1.00 (0.92 to 1.09)1.00 (0.93 to 1.09)
  • * Adjusted for age, CASH, no. of previous tests, symptoms of STIs, education and employment status.

  • Adjusted for age, sex, MSM, no. of previous tests, symptoms of STIs, education and employment status.

  • Adjusted for CASH, sex, MSM, no. of previous tests, symptoms of STIs, education and employment status.

  • § Adjusted for age, CASH, MSM, no. of previous tests, symptoms of STIs, education and employment status.

  • Excluded tests were syphilis, herpes and HIV.

  • CASH, contraceptive advice and sexual health services; MSM, men who have sex with men; ‘No’ refers to all other respondents; STI, sexually transmitted infection; ‘yes’ refers to MSM.