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. 2009 Mar 27;9:22. doi: 10.1186/1471-2288-9-22

Table 2.

Analyses to be performed in the IPD meta-analyses.

Topics Postmenopausal bleeding Preterm birth Tubal pathology Ovarian response in IVF
ROC analysis -TVS* -Cervical length* -Age* -Age*
-CAT* -FSH*
-AFC*
-AMH*

Univariable analyses All relevant patient characteristics All relevant patient characteristics All relevant patient characteristics All relevant patient characteristics

Multivariable model patient characteristics only -Age -Age -Age -Age
-HRT use -Obstetric history -Fertility history
-BMI -BMI -PID
-Time since menopause -Multiple pregnancies -Ectopic pregnancy
-Diabetes -Parity -BMI
-Hypertension -Diabetes -Pelvic surgery
-Anticoagulants use -Blood pressure
-Previous cancer
-Thyroid dysfunction

Tests in multivariable model with tests -TVS -Cervical length -CAT -AFC
-Hysteroscopy -Fibronectin test -HSG -FSH
-Laparoscopy -AMH

Subgroup analysis -BMI* -Age* -Age*
-Diabetes -PID -Duration subfertility*
Duration subfertility* -Type subfertility
-Type subfertility -BMI*
-BMI*
-CAT

Diagnostic decision rules:
1. Patient characteristics rule histology if ca > 3%
2. Selective rule TVS if ca > 3% → > 4 mm: histology
3. Integrated rule TVS and histology if ca > 3%

Decision analysis -Patient characteristics -Patient valuations
-Tubal pathology -IVF success

Combined analyses Combination with progesterone Combination with IVF outcome

Overview of variables and analyses that will be used, specified for each clinical topic. Marked variables (*) will also be assessed as continuous data.