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. Author manuscript; available in PMC: 2007 Jun 15.
Published in final edited form as: Hum Reprod. 2006 Oct 27;22(3):853–857. doi: 10.1093/humrep/del417

Table II.

Correlation of bleed characteristics with markers of the strength of the lost pregnancy (N = 36 women)

(Characteristics of Pad + Tampon Use Within-Woman Difference)a Pregnancy Marker
Maximum hCG
Days from ovulation to bleeding
ρb P-value ρb P-value
Length of use (days) 0.09 0.59 0.07 0.66
Total no. used during bleed period 0.37 0.02 0.48 0.003
Max. no. used in one day 0.16 0.35 0.16 0.34
Mean no. per bleeding day 0.29 0.08 0.47 0.004
Period day of heaviest use −0.11 0.53 −0.29 0.09
No. of light days (0–3)c,d −0.38 0.02 −0.42 0.01
No. of medium days (4–6) 0.32 0.05 0.39 0.02
No. of heavy days (7+) 0.05 0.79 0.08 0.66
a

Value for woman’s bleed following her early loss minus mean value for her bleeds following cycles with no detected conception

b

Spearman correlation coefficient

c

Numbers in parentheses indicate daily total for pad + tampon use.

d

One bleed episode has a single day with pads + tampons = 0.