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Table 2 Maternal Frailty (MaFra) Inventory. Intrauterine and extrauterine preterm birth risk factors included in the MaFra Inventory. 150 items assess the 71 listed factors while 24 Items collect more general sociodemographic, anamnestic and basic pregnancy history information for a total of 174 items included in the MaFra Inventory (Continued)

From: A hierarchical procedure to select intrauterine and extrauterine factors for methodological validation of preterm birth risk estimation

System

Pregnancy anamnesis

Factors

Number of items

High/ low risk

Uterine environment

Study

EXTRAUTERINE

CURRENT (Conditions of Pregnancy)

Corticosteroids

4

L

-

[53]

EXTRAUTERINE

CURRENT (Conditions of Pregnancy)

Analgesics

1

L

-

[54]

EXTRAUTERINE

CURRENT (Conditions of Pregnancy)

Antihypertensives

1

L

-

[55]

EXTRAUTERINE

CURRENT (Conditions of Pregnancy)

Antiemetics

1

L

-

[56]

EXTRAUTERINE

CURRENT (Conditions of Pregnancy)

Antihistamines

1

L

-

[57]

EXTRAUTERINE

CURRENT (Conditions of Pregnancy)

Anti-inflammatories

1

L

-

[58]

EXTRAUTERINE

CURRENT (Conditions of Pregnancy)

Hormones

1

L

-

[59]

EXTRAUTERINE

CURRENT (Conditions of Pregnancy)

Vaccinations

1

L

-

[60]

EXTRAUTERINE

CURRENT (Conditions of Pregnancy)

Antibiotics

1

L

-

[61]

EXTRAUTERINE

BEFORE (Lifestyle)

Folic Acid Supplementation

3

L

-

[62]

EXTRAUTERINE

BEFORE (Lifestyle)

Estroprogestinic Therapy

1

L

-

[63]

EXTRAUTERINE

BEFORE (Lifestyle)

Diabetes

1

L

-

[64]

EXTRAUTERINE

BEFORE (Lifestyle)

Hypertension

1

L

-

[64]

EXTRAUTERINE

BEFORE (Lifestyle)

Maternal Medication

2

L

-

[65]

EXTRAUTERINE

BEFORE (Lifestyle)

Cigarette Smoking

2

L

-

[7]

EXTRAUTERINE

BEFORE (Lifestyle)

Alcohol use

2

L

-

[66]

EXTRAUTERINE

BEFORE (Lifestyle)

Use of Drugs/Substance Abuse

6

L

-

[67]

EXTRAUTERINE

BEFORE (Lifestyle)

Caffeine

2

L

-

[68]

EXTRAUTERINE

BEFORE (Lifestyle)

Maternal Stress

1

L

-

[69]

EXTRAUTERINE

BEFORE (Lifestyle)

Weight

1

L

-

[70]