Skip to main content

Table 2 Comparison of the pedigree symbols used

From: f-treeGC: a questionnaire-based family tree-creation software for genetic counseling and genome cohort studies

Pedigree software packages

f-treeGC

PedigreeXP

Progeny Free Online Pedigree Tool

Genial Pedigree Draw

My Family Health Portrait

Version

1.01

2.1.0.169

Not described

2.0

3.4

Standard pedigree symbolsa

 Name of proband/consultand

Yes

Yes

Yes

Yes

No

 Family names

Yes

Yes

Yes

Yes

Yes

 Historian

Yesb

No

Yesb

No

No

 Date of intake/update

Yes

No

No

No

Yes

 Reason for taking pedigree

Yesb

No

Yesb

No

No

 Ancestry of both sides of the family

Yes

Yes

Yes

Yes

No

 Age

Yes

Yes

Yes

Yes

No

 Generation numbered with Roman numerals I, II, III, etc.

Yes

Yes

Yesb

Yesb

No

 Individual numbered 1, 2, 3, etc.

Yes

Yes

Yesb

Yesb

No

 Individual

Yes

Yes

Yes

Yes

Yes

 Affected individual

Yes

Yes

Yesd

Yes

Yes

 Affected individual (> one condition)

Yesc

Yesc,d

Yes

Yes

No

 Multiple individuals, number known

Yes

Yes

Yes

Yes

No

 Multiple individuals, number unknown

Yes

Yes

Yes

Yes

No

 Deceased individual

Yes

Yes

Yes

Yes

Yes

 Consultand

Yes

No

No

Yes

No

 Proband

Yes

Yesd

Yesd

Yes

No

 Stillbirth (SB)

Yesb

No

No

No

No

 Pregnancy (P)

Yes

Yes

Yes

Yes

No

 Spontaneous abortion (SAB)

Yes

Yes

Yesd

Yes

No

 Affected SAB

Yes

Yes

Yesd

No

No

 Termination of pregnancy (TOP)

Yes

Yes

No

Yes

No

 Affected TOP

Yes

Yes

No

No

No

 Ectopic pregnancy

Yesb

Yesb

No

Yes

No

 Relationship line

Yes

Yes

Yes

Yes

Yes

 A break in relationship line

Yes

Yes

Yes

Yes

No

 Divorced partner

Yese

Yes

Yes

Yes

No

 Consanguinity

Yes

Yes

Yes

Yes

No

 Multiple gestation, monozygotic

Yes

Yes

Yes

Yes

No

 Multiple gestation, dizygotic

Yes

Yes

Yes

Yes

No

 Multiple gestation, unknown

Yesb

No

Yesb

No

No

 Multiple gestation, trizygotic

Yes

Yes

Yes

Yes

No

 Family history not available/known for individual

Yes

No

No

No

No

 No children by choice or reason unknown

Yes

No

Yes

Yesd

No

 Infertility

Yes

No

Yes

Yesd

No

 Adoption

Yes

Yes

Yes

Yes

Yesd

 Ovum or sperm donor

Yes

No

No

Yes

No

 Surrogate (gestational carrier)

Yes

No

No

Yes

No

 Evaluation

Yesb

Yesb

Yes

Yesb

No

 Carrier

Yes

Yesd

Yesf

Yes

No

 Asymptomatic/presymptomatic carrier

Yes

No

No

Yes

No

 Uninformative study

Yesb

Yesb

Yesb

Yesb

No

 Affected individual with positive evaluation

Yesb

Yesb

Yes

Yesb

No

  1. aBennett et al., 2008 [2]
  2. bBy using “Remarks”, “Comment”, “Notes”, or “Annotated Text”
  3. cUp to four conditions
  4. dDifferent symbols used from the recommended common pedigree symbols
  5. eLimited to three individuals (consultand couple with children, or parents of consultand without children)
  6. fBy using “Apply symbols”