@article{fdi:010095363,
  title = {{L}ongitudinal study on changes in {COVID}-19 vaccination intentions in {B}enin and {S}enegal : {I}nsights from {G}eneralized {E}stimating {E}quations ({GEE})},
  author = {{G}aye, {I}. and {F}aye, {A}. and {A}vahoundje, {E}. {M}. and {B}a, {M}. {F}. and {R}idde, {V}al{\'e}ry},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {COVID}-19 pandemic prompted strict measures and rapid vaccine deployment in {B}enin and {S}enegal. {T}his longitudinal study uses {G}eneralized {E}stimating {E}quations ({GEE}) to analyze the evolution of vaccination intent and its determinants, focusing on attitudes, risk perceptions, and social influence. {T}his descriptive and analytical longitudinal study included 546 {B}eninese and 319 {S}enegalese individuals aged 18 and above, selected using marginal quotas. {D}ata were collected via {R}andom {D}igit {D}ialing ({RDD}) based on a questionnaire informed by the {T}heory of {P}lanned {B}ehavior ({TPB}) and the {H}ealth {B}elief {M}odel ({HBM}). {I}nfluential factors were assessed using {GEE} models. {V}accination intent increased more significantly in {S}enegal (+12.5 points, p = .000) than in {B}enin (+5.0 points, p = .089). {T}here was a statistically significant increase in vaccine intent among women (+19.9 points) and individuals under 25 (+15.6 points) in {S}enegal, whereas in {B}enin, younger respondents showed a decrease (-11.5 points). {I}n both countries, individuals surveyed in the second phase were significantly more likely to express vaccination intent ({B}enin: {OR} = 6.9; {S}enegal: {OR} = 5.0). {C}ommon positive determinants included perceived benefits, social influence, and favorable attitudes toward vaccination. {D}ifferences emerged: perceived efficacy and behavioral control were significant in {B}enin, while safety concerns were a major barrier in {S}enegal. {T}his study highlights common and context-specific determinants of vaccination intent in {B}enin and {S}enegal. {I}t emphasizes the need for tailored communication strategies and efforts to strengthen public trust to enhance vaccine uptake across {W}est {A}frica.},
  keywords = {{COVID}-19 ; {GEE} ; intention ; vaccination ; {B}enin ; {S}enegal ; {BENIN} ; {SENEGAL}},
  booktitle = {},
  journal = {{H}uman {V}accines and {I}mmunotherapeutics},
  volume = {21},
  numero = {1},
  pages = {2565927 [16 p.]},
  ISSN = {2164-5515},
  year = {2025},
  DOI = {10.1080/21645515.2025.2565927},
  URL = {https://www.documentation.ird.fr/hor/fdi:010095363},
}