Table 4.

Adjusted association between year of test and the likelihood for failure to return, by PVTCC^†.

	Bonassama	Deido	New-Bell	Nylon	Cité des Palmiers	Logbaba
Year of test
2009	1	1	1	1
2010	1.82 (1.40, 2.35)	1.09 (0.83, 1.42)	0.91 (0.64, 1.28)	0.98 (0.76, 1.26)
2011	16.94 (11.92, 24.08)	0.12 (0.08, 0.17)	1.64 (1.18, 2.28)	0.97 (0.75, 1.25)
2012	NA	0.38 (0.30, 0.48)	2.65 (2.09, 3.37)	0.92 (0.72, 1.17)	1	1
2013	NA	0.13 (0.10, 0.17)	2.37 (1.86, 3.02)	1.01 (0.79, 1.28)	1.23 (0.94, 1.61)	0.10 (0.04, 0.24)
p for trend	<0.0001	<0.0001	<0.0001	0.9971	NA	NA

^†Adjusted for age, sex, marital status, occupation, and reason of test.