. 2021 Feb 18;2(2):195–200. doi: 10.1016/j.xfre.2021.02.005

Table 3.

Progesterone level outcomes by weight and BMI.

Progesterone level at the time of the pregnancy test (ng/mL)	Grouped by Weight			Grouped by BMI
	Weight <68 kg (n = 248)	Weight 68-90.3 kg (n = 266)	Weight ≥90.7 kg (n = 119)	BMI <30 kg/m² (n = 308)	BMI ≥30 kg/m² (n = 124)
<15	8 (3%)^a	20 (8%)^a	34 (29%)^b^,^c	15 (3%)^d	47 (24%)^e
15–19.9	19 (8%)^a^,^c	72 (27%)^a^,^b	53 (45%)^b^,^c	70 (16%)^d	74 (38%)^e
≥20	221 (89%)^a^,^c	174 (65%)^a^,^b	32 (27%)^b^,^c	353 (81%)^d	73 (38%)^e

Note: Data are presented as number (%). P values are for chi-square test of independence. BMI = body mass index.

Proportion differs significantly from the weight ≥90.7 kg group at .05 level.

Proportion differs significantly from the weight <68 kg group at .05 level.

Proportion differs significantly from the weight 68-90.3 kg group at .05 level.

Proportion differs significantly from the BMI ≥30 kg/m² group at .05 level.

Proportion differs significantly from the BMI <30 kg/m² group at .05 level.