Table 3.

Logistic regression analysis examining impact of test type and result type on perception that the test result means ‘no risk’

	Proportion answering ‘no risk’ in each subgroup % (95% CI) (n=1204)	Result means ‘no risk’ of future infection OR (95% CI)
		Mutually adjusted (n=1204)	Adjusted for demographics* (n=1179)
Test type
Antibody (n=603)	9.8 (7.5 to 12.4)	Ref	Ref
Immunity (n=601)	19.1 (16.1 to 22.5)	2.77 (1.48 to 5.17)	2.91 (1.52 to 5.55)
Result type
Test (n=354)	15.5 (11.9 to 19.7)	Ref	Ref
Certificate (n=444)	15.5 (12.3 to 19.3)	0.99 (0.50 to 2.00)	0.96 (0.47 to 1.99)
Passport (n=406)	12.3 (9.3 to 15.9)	1.22 (0.63 to 2.38)	1.24 (0.62 to 2.48)
Test by result interaction
Certificate by immunity result		0.98 (0.42 to 2.27)	1.00 (0.42 to 2.40)
Passport by immunity result		0.47 (0.20 to 1.12)	0.46 (0.19 to 1.12)

Bold indicates statistical significance (p<.05)

*Fully adjusted model includes age (with quadratic term), gender, education level and region (coded as per table 1).