Table 2.

Odds of a live birth by quantiles of biochemical measurands before and after 7 weeks' gestation

	N, Miscarriage / Live birth	< 7 weeks’ gestation		N, Miscarriage / Live birth	≥ 7 weeks’ gestation
Estradiol		Quantiles (nmol/L)	OR		Quantiles (nmol/L)	OR
	16/27	0.2–1.0	ref	23/24	0.3–2.0	ref
	11/37	1.0–1.3	1.7 (0.65–4.3, p = 0.28)	6/41	2.0–3.0	6.5 (2.1–20, p < 0.05)
	5/37	1.3–2.1	4.4 (1.4–14, p < 0.05)	2/44	3.0–4.0	21 (4.5–99, p < 0.05)
	2/40	2.1–4.5	12 (2.7–52, p < 0.05)	2/45	4.0–11	21 (4.6–101, p < 0.05)
Progeste-rone		Quantiles (nmol/L)	OR		Quantiles (nmol/L)	OR
	16/27	14–40	ref	18/29	12–46	ref
	11/37	40–53	1.7 (0.66–4.2, p = 0.28)	8/39	46–60	3.0 (1.0–8.5, p < 0.05)
	4/38	53–70	5.6 (1.7–19, p < 0.05)	2/44	60–80	14 (3.1–60, p < 0.05)
	3/39	70–154	7.7 (2.0–30, p < 0.05)	5/42	80–169	5 (1.8–15, p < 0.05)
hCG		Quantiles (U/L)	OR		Quantiles (U/L)	OR
	19/27	219–7000	ref	21/26	8000–60000	ref
	6/37	7000–16000	4.8 (1.6–14, p < 0.05)	6/41	60,000–85000	5.5 (1.9–16, p < 0.05)
	7/37	16,000–37000	4.0 (1.4–11, p < 0.05)	2/44	85,000–115000	18 (3.8–84, p < 0.05)
	2/40	37,000–161000	11 (2.8–40, p < 0.05)	4/43	115,000–200000	8.7 (2.6–29, p < 0.05)