Table 3 MLPT results by gestational age: % [95 % CI*] (n)
From: Self-administered multi-level pregnancy tests in simplified follow-up of medical abortion in Tunisia
n = 341a | |
|---|---|
Proportion of women with a decline in hCG who did not have ongoing pregnancy (negative predictive value) | |
≤ 63 days gestation | 100.0 [98.8–100.0] (298/298) |
64–70 days gestation | 96.9 [83.8–99.9] (31/32) |
Proportion of women with ongoing pregnancy whose follow-up MLPT indicated steady or increasing hCG (sensitivity) | |
≤ 63 days gestation | 100.0 [15.8–100.0] (2/2) |
64–70 days gestation | 50.0 [1.3–98.7] (1/2) |
Proportion of women with steady or increasing hCG who had ongoing pregnancy (positive predictive value) | |
≤ 63 days gestation | 20.0 [2.5–55.6] (2/10) |
64–70 days gestation | 100.0 [2.5–100.0] (1/1) |
Proportion of women without ongoing pregnancy whose follow-up MLPT indicated decreasing hCG (specificity) | |
≤ 63 days gestation | 97.4 [94.9–98.9] (298/306) |
64–70 days gestation | 100.0 [88.8–100.0] (31/31) |