Submitted:
29 April 2026
Posted:
30 April 2026
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Abstract
Keywords:
1. Introduction
2. Materials and Methods
2.1. Study Design
- A prospective collection of EC consultation data using the digital tool in participating pharmacies.
- An anonymous voluntary post-consultation online survey assessing patient experience.
2.2. Setting and Implementation
2.3. Participants
2.4. Variables
2.5. Data Processing
2.6. Statistical Analysis
2.7. Ethical Considerations
2.8. Data Availability
2.9. Use of Generative Artificial Intelligence
3. Results
3.1. Consultation Dataset
3.1.1. Study Population and Data Cleaning
3.1.2. Demographic, Consultation and Clinical Characteristics
3.1.3. Pre-Consultation Knowledge of the Optimal Active Ingredient
3.2. Satisfaction survey Population
Survey Population and Data Cleaning
3.3. Demographic, Consultation and Clinical Characteristics of the Survey Population
3.4. Patient-Reported Experience with the Digital Counselling Tool
3.5. Intention to Reuse the Digital Counselling Tool
4. Discussion
4.1. Principal Findings
4.2. Results in the Context of Existing Evidence
4.3. Clinical Implications
4.4. Strengths and Limitations
4.5. Future Research
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
| BMI | Body mass index |
| EC | Emergency contraception |
| EKNZ | Ethikkommission Nordwest- und Zentralschweiz (Ethics Committee of Northwestern and Central Switzerland) |
| IQR | Interquartile range |
| LNG | Levonorgestrel |
| SD | Standard deviation |
| STI | Sexually transmitted infection |
| UPA | Ulipristal acetate |
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| Characteristics | Consultation dataset | Survey population | |
|---|---|---|---|
| Age [years], mean (SD) | 26 (7.4) | 26 (7.8) | |
| BMI [kg/m²], mean (SD) | 22.1 (4.2) | 22.1 (4.6) | |
| Time to counselling start [minutes], median (IQR) | 6:17 (5:00) | 8:04 (6:03) | |
| Pharmacist counselling duration [minutes], median (IQR) | 4:27 (4:33) | 6:33 (5:24) | |
| Total consultation duration [minutes], median (IQR) | 11:32 (7:52) | 15:28 (9:47) | |
| n (%) | n (%) | ||
| Pharmacy region | n = 3,428 | n = 148 | |
| German-speaking region | 1,738 (51%) | 128 (86%) | |
| French-speaking region | 1,690 (49%) | 20 (14%) | |
| Reason for EC request | n = 3,388 | n = 145 | |
| Condom failure | 1,703 (50%) | 104 (72%) | |
| No contraception used | 1,429 (42%) | 34 (23%) | |
| Hormonal contraception issue | 185 (5%) | 3 (2%) | |
| Other situation | 71 (2%) | 4 (3%) | |
| Active ingredient dispensed | n = 3,039 | n = 140 | |
| Ulipristal acetate | 2,152 (71%) | 115 (82%) | |
| Levonorgestrel | 782 (26%) | 21 (15%) | |
| Double Dose Levonorgestrel | 31 (1%) | 3 (2%) | |
| No product dispensed | 74 (2%) | 1 (1%) | |
| Taken on-site (pharmacy) | n = 2,759 | n = 134 | |
| Yes | 2,662 (96%) | 133 (99%) | |
| No | 97 (4%) | 1 (1%) | |
| Breastfeeding | n = 3,394 | n = 148 | |
| Yes | 47 (1%) | 3 (2%) | |
| No | 3,347 (99%) | 145 (98) | |
| Concomitant medication | n = 3,402 | n = 148 | |
| Yes | 632 (19%) | 29 (20%) | |
| No | 2,770 (81%) | 119 (80%) | |
| Previous EC use (lifetime) | n = 3,400 | n = 148 | |
| Yes | 2,252 (66%) | 95 (64%) | |
| No | 1,148 (34%) | 53 (36%) | |
| EC use within the same cycle | n = 2,249 | n = 95 | |
| Yes | 118 (5%) | 7 (7%) | |
| No | 2,131 (95%) | 88 (93%) |
| Item | Agreement n (%) |
Disagreement n (%) |
n (valid) |
|
|---|---|---|---|---|
| Usability & Interaction Preference | pharMe was easy to use | 142 (97%) | 5 (3%) | 147 |
| I had difficulties completing the questions on my own | 20 (14%) | 126 (86%) | 146 | |
| I would have preferred answering the questions orally | 30 (23%) | 103 (77%) | 133 | |
| Discretion & Trust | I was able to document my concern discreetly | 143 (99%) | 2 (1%) | 145 |
| pharMe appeared trustworthy | 141 (98%) | 3 (2%) | 144 | |
| I have concerns regarding data protection | 26 (17%) | 126 (83%) | 152 | |
|
Perceived Impact on Counselling |
The use of pharMe on a tablet or computer disturbed the counselling conversation | 13 (11%) | 108 (89%) | 121 |
| I was able to ask questions before, during or after the consultation | 115 (94%) | 7 (6%) | 122 | |
| The counselling conversation was unnecessary | 33 (27%) | 88 (73%) | 121 |
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