Keyphrases
Obstetrics
100%
Hospitalization
100%
Risk Factors
100%
Denmark
100%
Diagnostic Categories
13%
Relative Risk
13%
Very Preterm Delivery
13%
Register Study
6%
Partner Status
6%
Population-based Study
6%
Unemployment
6%
Maternal Body
6%
Time Trends
6%
Maternal Age
6%
Confidence Interval
6%
Gestational Age
6%
National Register
6%
Maternal Infection
6%
Multiple Pregnancy
6%
Gestational Week
6%
International Classification of Diseases-10
6%
Nulliparity
6%
Time Risk
6%
Significant Risk Factors
6%
Body Mass Index
6%
Length of Stay
6%
Educational Level
6%
Trend Factors
6%
Medicine and Dentistry
Obstetrics
100%
Prevalence
100%
Premature Labor
30%
Diagnosis
15%
Maternal Disease
7%
Gestational Age
7%
Multiple Pregnancy
7%
Nulliparity
7%
Body Mass Index
7%
International Classification of Diseases
7%
Maternal Age
7%
Cohort Analysis
7%
Biochemistry, Genetics and Molecular Biology
Prevalence
100%
Maternal Age
50%
International Classification of Diseases
50%
Cohort Study
50%
Body Mass
50%
Pharmacology, Toxicology and Pharmaceutical Science