Table 4

Subgroup preferences for STI testing characteristics

Attributes and levels	MSM^*, OR (95% CI)		CASH^†, OR (95% CI)		Age^‡, OR (95% CI)			Sex^§, OR (95% CI)
Attributes and levels	Yes	No	Yes	No	<25	≥25 and ≤45	45+	Male	Female
Time to appointment
Drop in same day and wait	1.58 (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 h	1.36 (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 h	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
After 48 h but at individuals convenience	1.13 (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 day	1.74 (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 days	1.19 (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 days	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
21 days	0.59 (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 only	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
Positive and negative results	1.15 (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 knowledge	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
With specialist STI knowledge	1.98 (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 STIs^¶	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
Tests for all STIs	2.94 (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 centre	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
Post to home address	0.78 (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 email	0.85 (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 centre	1.08 (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.