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Table 3 Generalized linear model using a Poisson link function to predict the recovery time from severe OHSS: general and OHSS-specific factors

From: Predictive factors for recovery time in patients suffering from severe OHSS

Parameter

ß

Standard error (ß)

95% CI

p

Lower

Upper

(Intercept)

1.758

0.5485

0.683

2.833

0.001

Pregnancy

0.163

0.0756

0.015

0.312

0.031

Use of dostinex

-0.490

0.3169

-1.111

0.131

0.122

Early (vs. late) onset OHSS

0.206

0.1785

-0.144

0.555

0.249

Polycystic ovary syndrome

0.332

0.1065

0.124

0.541

0.002

Use of long protocol

0.051

0.0753

-0.096

0.199

0.497

Number of retrieved oocytes (n)

0.003

0.0056

-0.008

0.018

0.630

Year of COH/OHSS treatment: 1996-2007

0.655

0.3262

-0.115

1.294

0.065

Use of hCG for ovulation induction

0.174

0.0804

-0.017

0.332

0.030

Age

0.005

0.0065

-0.008

0.018

0.422

BMI

0.010

0.0069

-0.004

0.023

0.159

Time between oocyte retrieval and hospitalization for OHSS (days)

-0.005

0.0137

-0.032

0.022

0.696

Necessity for paracentesis

0.446

0.0795

0.290

0.602

<0.001

Initial hematocrit (%)

0.049

0.0198

0.010

0.088

0.013

Maximum hematocrit (%)

0.048

0.0200

0.009

0.088

0.016

  1. Coefficient estimates β, standard error se(β), 95%-confidence interval (CI) = β ± zα/2 se(β) , and corresponding p-value are summarized in the table. The categorical factors are compared to the missing category, i.e., no use of cabergoline, early onset OHSS, no polycystic ovary syndrome, use of other substances than hCG analogues for ovulation induction, year of treatment 2008-2010, controlled ovarian hyperstimulation with other protocols than long protocol, and no need for paracentesis. Statistically significant p-values are printed in bold numbers.