Plain English Summary
Background and study aims
In Taiwan, the Pap smear test for cervical cancer screening has been implemented since 1995, and previous research has shown that it can substantially decrease cervical cancer incidence and mortality (death) rates. However, the triennial participation rate has never reached 70% since this policy started in 1995, indicating that the methods of inviting people to attend the Pap smear test still have room to improve. The aim of this study is to evaluate the effectiveness of different invitation strategies.
Who can participate?
Women aged 30-69 who have not attended cervical cancer screening in the last three years
What does the study involve?
Participants are randomly allocated to receive either no intervention, a postcard invitation, a telephone call (reminding only), or a telephone call with scheduling appointment. The number of participants undergoing the Pap smear test within four months after the invitation is measured.
What are the possible benefits and risks of participating?
This program is expected to increase participation in cervical cancer screening. There are no risks of taking part in the study.
Where is the study run from?
Changhua County Public Health Bureau (Taiwan)
When is the study starting and how long is it expected to run for?
July 2008 to April 2009
Who is funding the study?
Health Promotion Administration, Ministry of Health and Welfare (Taiwan)
Who is the main contact?
Dr Sherry Yueh-Hsia Chiu
Dr Sherry Yueh-Hsia Chiu
Department of Health Care Management
College of Management
Chang Gung University
Wen-Hwa 1st Road
Dr Yen-Po Yeh
Evaluating the community-based invitation strategies for cervical cancer screening participation: a randomised controlled trial
The aim of this study is to evaluate the effectiveness of different invitation strategies on cervical screening participation based on a community-based approach.
Ethics Committee of Chang Gung Memorial Hospital, 15/02/2016, ref: 104-9946B
Stratified randomised controlled trial
Primary study design
Secondary study design
Randomised controlled trial
Patient information sheet
Not available in web format, please use the contact details to request a patient information sheet
Women aged 30-69 and pap smear screening overdue >=3 years
Based on clinic visiting records in 2006 as hospital affiliation indicator, eligible women were stratified into three levels, including no record, 1-3 times, and 4 times or more of clinic visits in 2006, and then randomised by computer-generated random numbers to one of four invitation strategies for cervical cancer screening:
3. Telephone call reminding only
4. Telephone call with scheduling appointment
Outcomes are measured within 4 months since first date of invitation or sending postcard.
Primary outcome measure
Number of women who participate in cervical screening within 4 months starting from first date of invitation, ascertained using the National Cervical Cancer Screening Registry System
Secondary outcome measures
There are no secondary outcome measures
Overall trial start date
Overall trial end date
Reason abandoned (if study stopped)
Participant inclusion criteria
1. Women aged 30-69 lived in Changhua County
2. With/without pap smear screening overdue >=3 years
Target number of participants
Participant exclusion criteria
Women took pap smear within 3 years since last screening participation
Recruitment start date
Recruitment end date
Countries of recruitment
Trial participating centre
Changhua County Public Health Bureau
No.162, Sec. 2, Jhongshan Rd.
Health Promotion Administration Ministry of Health and Welfare
+886 (0)2 25220888
Health Promotion Administration, Ministry of Health and Welfare, Taiwan (DOH97-HP-1505)
Funding Body Type
Funding Body Subtype
Results and Publications
Publication and dissemination plan
The trialists intend to publish this study on 30/10/2018.
IPD sharing statement
The current data with anonymization can be requested based on ethical committee review and approval.
Intention to publish date
Participant level data
Available on request
Basic results (scientific)
- ISRCTN11523089_PROTOCOL_21Jun2018.docx Uploaded 02/04/2019