Related Experiment Video
Updated: Oct 22, 2025

Standardization of Basket Use in Sialendoscopy: A Ten-Year Retrospective Study
Published on: June 6, 2025
Knowledge and Patterns of Use of Emergency Oral Contraception among Portuguese Female Users of Healthcare Services
Ângela Rodrigues1, Bruno Valentim2, Daniel Tavares3
1Departamento de Obstetrícia. Centro Hospitalar Universitário de Coimbra. Coimbra. Faculdade de Medicina. Universidade de Coimbra. Centro Académico Clínico de Coimbra. Coimbra. Portugal.
Introduction:
The lack of knowledge about the existence, effectiveness, and supply of emergency contraception as well as access to it, its effective duration and the lack of recognition of the need for its use can prevent women from using it. The aim of this study was to ascertain the attitudes, experience, level of knowledge and information sources about emergency contraception of Portuguese female users of healthcare services.
Material And Methods:
We conducted a multicentre, cross-sectional, observational study among 280 Portuguese women users of health care services through an original and anonymous questionnaire composed of 30 questions.
Results:
The mean age of the women who replied to the questionnaire was 33.83 ± 8.76 years. Of the observed sample, 27.7% used EC, 50% of whom with no counselling. Despite 92.1% of women claiming knowledge about emergency contraception, only 31.2% of these answered 8 - 10 questions correctly (14 in total). The media were the most frequent source of information (63.4%). Most participants (67.5%) considered that emergency contraception is associated with severe adverse reactions. Furthermore, 76% did not know the time range of effectiveness after unprotected sexual intercourse. Youngest age (p = 0.038), higher education level (p < 0.001), increasing parity (p = 0.051) and previous use of emergency contraception (p = 0.011) were identified as the determinant sociodemographic factors for a higher level of knowledge about emergency contraception.
Discussion:
The use of emergency contraception after counselling by healthcare professionals was lower than reported in the literature.
Conclusion:
This study showed that female users of healthcare services were aware of the existence of emergency contraception, but they demonstrated a low level of knowledge about it, especially regarding the correct period of use, place of acquisition and safety issues.
Related Concept Videos
Birth Control Methods
Hormonal Regulation of the Menstrual Cycle
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
Types of Reports III: Telephone and Verbal Reports
Here's an overview of each type:
Telephone Orders
Drug Delivery: Enteral Route
Hormonal Control of the Ovarian Cycle
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
Analysis of Population Pharmacokinetic Data

