Routine data from prevention of mother-to-child transmission (PMTCT) HIV testing not yet ready for HIV surveillance in Mozambique: a retrospective analysis of matched test results

Table 2 Percent agreement of routine PMTCT HIV status versus ANC surveillance test results in Mozambique

	n	Positive percent agreement (95% CI)	Negative percent agreement (95% CI)
Region
South	5729	83.4 (77.9-88.9)	99.0 (98.5-99.4)
Center	8675	89.7 (85.4-94.0)	99.0 (98.6-99.5)
North	6159	89.2 (85.0-93.4)	98.4 (97.7-99.1)
Year
2007	10364	86.5 (82.5-90.4)	98.6 (98.1-99.0)
2009	10199	90.6 (87.6-93.5)	99.1 (98.8-99.5)
Total	20563	88.5 (85.7-91.3)	98.9 (98.5-99.2)
Median (IQR)	36	88.8 (83.1-93.0)	99.1 (98.6-99.5)

Notes:
1. Positive percent agreement calculated as R+S+/(R+S+ and R-S+) where R+/R- refers to routine PMTCT HIV status and S+/S- refers to ANC surveillance HIV status.
2. Negative percent agreement calculated as R-S-/(R+S- and R-S-).

ISSN: 1471-2334