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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]