1.
Africa focus group: Session 2.
2.
3.
4.
5.
Africa focus group 3.
Tabulated results—African focus group data compilation 2018–2019.
Placebo questionnaire (Dutch version).
Full survey presented to late adolescents in Dutch.
Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) guideline.
Univariable logistic regression for preterm birth per variable before each childbirth.
Logistic regression for preterm birth for women with no CIN, untreated CIN, and treated CIN before each childbirth.
Logistic regression for preterm birth per volume taken from the cervix before each childbirth.
Logistic regression for preterm birth per grade of CIN and volume taken from the cervix before each childbirth.