Table 9 Operational definition and scale of measurement for other independent variables
From: Factors associated with malaria vaccine uptake in Sunyani Municipality, Ghana
Variable | Operational definition | Scale of measurement | Source of data |
|---|---|---|---|
Knowledge about RTS,S | Whether parent/caregiver has ever heard about the malaria vaccine | Binary | Interview |
Yes | |||
No | |||
Where parent/caregiver first heard about malaria vaccine | Nominal | Interview | |
CWC | |||
Health facility announcement | |||
Radio | |||
Friend/relative | |||
Knowledge of the number of times a child is supposed to be administered malaria vaccine | Binary | Interview | |
Correct number | |||
Incorrect number | |||
Knowledge of schedule of malaria vaccine administration | Binary | Interview | |
Correct order | |||
Incorrect order | |||
Perception of vaccines becoming too many | Parent/caregiver thinks vaccines are becoming too many for children with the introduction of malaria vaccine | Binary | Interview |
Yes | |||
No | |||
Concern about vaccine safety | Heard about any negative issue/report concerning malaria vaccine | Binary | Interview |
Yes | |||
No | |||
Previous experience with vaccines | Whether child has ever suffered an adverse reaction following the administration of a vaccine | Binary | Interview |
Yes | |||
No | |||
Accessibility | Minutes spent in reaching nearest CWC | Ratio | Interview |
Affordability | Payment for vaccination services | Ratio | Interview |
Perception of quality of vaccination service | Description of CWC nurses’ attitude | Ordinal | Interview |
Excellent | |||
Very good | |||
Good | |||
Bad | |||
Very bad | |||
ANC attendance | Number of times mother attended ANC before delivery of this child | Ratio | Interview |
Sex of child | Child being male or female | Nominal | Interview |
Male | |||
Female | |||
Place of delivery | Where child was delivered | Nominal | Interview |
Home delivery | |||
Health facility | |||
Time of uptake | Age (in months) at which child was administered any dose of malaria vaccine | Ratio | Child’s CWC card |