Ultrasound image of a left tubal ectopic at 6+1 weeks gestation.

<p>A hyperechoic mass is seen adjacent to the left ovary.</p

β hCG clearance curves in women with an ectopic pregnancy managed successfully expectantly in whom the β hCG declined steadily from the initial measurement.

<p>β hCG clearance curves in women with an ectopic pregnancy managed successfully expectantly in whom the β hCG declined steadily from the initial measurement.</p

Scatter plot of circulating levels of serum heat shock protein 70 (Hsp 70) in the different groups of women with median and interquartile range.

<p>Group 1 (non-pregnant women, n = 14), group 2 (normal pregnant women, n = 32), group 3 (threatened miscarriage patients with a live birth outcome, n = 21) and group 4 (threatened miscarriage patients with a subsequent miscarriage, n = 19). General linear analysis of variance was carried out to study the statistical significance between the groups with posthoc tests. NS = not significant.</p

Scatter plot of circulating levels of serum soluble Endoglin (sEndog) in the different groups of women with median and interquartile range.

<p>Group 1 (non-pregnant women, n = 14), group 2 (normal pregnant women, women, n = 32), group 3 (threatened miscarriage patients with a live birth outcome, n = 21) and group 4 (threatened miscarriage patients with a subsequent miscarriage, n = 19). General linear analysis of variance was carried out to study the statistical significance between the groups with posthoc tests. P<0.001 = ***.</p

Demographic details of the participants in the study given as median and interquartile range (25^th, 75^th percentiles).

<p>Demographic details of the participants in the study given as median and interquartile range (25^th, 75^th percentiles).</p

Scatter plot of circulating levels of serum placental growth factor (PlGF) in the different groups of women with median and interquartile range.

<p>Group 1 (non-pregnant women, n = 14), group 2 (normal pregnant women, n = 32), group 3 (threatened miscarriage patients with a live birth outcome, n = 21) and group 4 (threatened miscarriage patients with a subsequent miscarriage, n = 19). General linear analysis of variance was carried out to study the statistical significance between the groups with posthoc tests. P<0.001 = ***, P<0.01 = **.</p

Scatter plot of circulating levels of serum soluble VEGF receptor 1 (sFLT-1) in the different groups of women with median and interquartile range.

<p>Group 1 (non-pregnant women, n = 14), group 2 (normal pregnant women, n = 32), group 3 (threatened miscarriage patients with a live birth outcome, n = 21) and group 4 (threatened miscarriage patients with a subsequent miscarriage, n = 19). General linear analysis of variance was carried out to study the statistical significance between the groups with posthoc tests. P<0.001 = ***.</p