Results of a pilot study in the U.S. and Vietnam to assess the utility and acceptability of a multi-level pregnancy test (MLPT) for home monitoring of hCG trends after assisted reproduction

Table 2 Concordance between serum and MLPT results^a: % (n)

	Serum showed steady or increase in hCG^b and at least 25 mIU/ml	Serum showed hCG < 25 or decrease in hCG^b
MLPT showed steady or increase in hCG^b and at least 25 mIU/ml (n = 106)	99.1 (105)	0.9 (1)
MLPT showed hCG < 25 or decrease in hCG^b (n = 50)	10.0 (5)	90.0 (45)

^aThere were 6 MLPTs with no serum test with which to compare,14 serum tests with no MLPT with which to compare, and 3 inconclusive MLPTs
^bAs compared to previous test. For the first test, we compared to an assumed 0 hCG level pre-ART
Kappa = 0.91 (95% CI: 0.84–0.98)

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