Transcript Disposable Syringes and Needles Construction of an Evaluation Tool for Field Assessments

Disposable Syringes and Needles
Construction of an Evaluation Tool
for Field Assessments
Bernadette Gergonne, Epicentre
SIGN meeting, New Delhi, India, 2001
Introduction
Cairo SIGN conference:
Many different new products on the market
e.g. AD syringes with complete range of size for
treatment injection.
Agreement of SIGN participants on
encouraging rigorous evaluation of safer
injection equipements
Agreement on WHO to prepare « statisticaly
sound framework » for evaluation of syringes
on the fields
Bernadette Gergonne, Epicentre, SIGN Meeting, New Delhi, India, August 2001
Objective
To design a tool (questionnaire) to
assess disposable syringes and
needles in field conditions
Bernadette Gergonne, Epicentre, SIGN Meeting, New Delhi, India, August 2001
Application and constraints
Application fields
Any uses
Any settings
Any kind of disposable devices
Constraints
Field testing
Questionnaire (users or observers)
Qualitative and quantitative information
Bernadette Gergonne, Epicentre, SIGN Meeting, New Delhi, India, August 2001
Different disposable devices
Classical needles and syringes
Auto-disable needles and syringes
Fixed or separate needles and syringes
Different uses
Treatment, immunisation
Different settings
OPD and IPD in hospitals
Health centres
Extended (or national) Programme of
Immunisation
National Immunisation Days
Mass vaccination campaign
Bernadette Gergonne, Epicentre, SIGN Meeting, New Delhi, India, August 2001
Domains to explore
Protection and sterility of the device
Preparation of the device
Injection
Recipient perception
Destruction
Bernadette Gergonne, Epicentre, SIGN Meeting, New Delhi, India, August 2001
Practical use of the questionnaire
Filled after one day observation
By one person (user or observer)
For one type of use
For one type of syringe and needle
Measure of subjective appreciation
Several questions per domain
Likert scale : ease of use or frequence level
Ponderation of item (determined by expert)
Calculation of Score
• By question
• By domain
• Global
Bernadette Gergonne, Epicentre, SIGN Meeting, New Delhi, India, August 2001
Exploitation of information
Centralisation of filled questionnaires
Database: one record per questionnaire
One day of observation
One user or observer
One type of use
One device (syringe and needle)
Analysis of Likert score will allow to
Describe devices by question or domain
Point out advantages of each device
Compare devices
according to type and place of use
Bernadette Gergonne, Epicentre, SIGN Meeting, New Delhi, India, August 2001
Method of questionnaire validation
Relevance of questions
Feasibility
Duration of administration
Percentage of correct filling
Reliability
Reproductibility intra-observer
Reproductibility inter-observer
Discriminating power between different
situations
Bernadette Gergonne, Epicentre, SIGN Meeting, New Delhi, India, August 2001
Comments
Tool construction in process
=> Need of expert advice
Domain
Questions selection
Questions formulation
Type of questionnaire administration (users or
observer) ?
Type of forms ?
Elaboration of a guideline to use the
questionnaire ?
Creation of a network of partners for field
validation
Bernadette Gergonne, Epicentre, SIGN Meeting, New Delhi, India, August 2001
First proposal of questionnaire
Bernadette Gergonne, Epicentre, SIGN Meeting, New Delhi, India, August 2001
First proposal of questionnaire
Bernadette Gergonne, Epicentre, SIGN Meeting, New Delhi, India, August 2001