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Manifestaciones Clínicas

Anne Nyambura Njogu1, Anne Njoki Gitere1, Levi A Muyela1

  • 1Brain and Mind Institute, Aga Khan University, Nairobi, Kenya.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
PubMed
Resumen
Este resumen es generado por máquina.

Una nueva escala Lifetime Sense of Safety (LSS) muestra buenas propiedades psicométricas en adultos kenianos. Esta escala mide la seguridad percibida durante la infancia y la edad adulta, correlacionándose negativamente con el estrés y positivamente con la resiliencia.

Palabras clave:
seguridad percibidaescala LSSpsicometríaestrésresilienciaadultos kenianosneurocienciapsicologíasalud pública

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Área de la Ciencia:

  • Neurociencia
  • Psicología
  • Salud Pública

Sus antecedentes:

  • La seguridad es crucial para la salud cerebral, sin embargo, no existen herramientas para medir la seguridad percibida.
  • La novedosa escala Lifetime Sense of Safety (LSS) se desarrolló para evaluar la autopercepción de la seguridad.
  • La escala evalúa la seguridad en entornos de la infancia y la edad adulta, denominada "protectoma".

Objetivo del estudio:

  • Describir datos psicométricos preliminares de la novedosa escala Lifetime Sense of Safety (LSS).
  • Evaluar la consistencia interna, la estructura factorial, los efectos del sexo y la validez convergente de la escala.
  • Evaluar el potencial de la escala LSS para investigar el impacto del "protectoma" a lo largo de la vida en la salud cerebral en la vejez.

Principales métodos:

  • Se desarrolló una escala LSS de 6 ítems en inglés y kiswahili.
  • Los encuestados calificaron la seguridad percibida en la infancia (hogar, escuela, vecindario) y en la edad adulta (hogar, trabajo, vecindario) en una escala de 0 a 10.
  • La escala se administró a 163 adultos kenianos; se evaluó la consistencia interna, la estructura factorial, los efectos del sexo y la validez convergente con el estrés percibido (PSS-4) y la resiliencia (CDRS).

Principales resultados:

  • La escala LSS demostró una buena consistencia interna (α = 0.86) y adecuación para análisis factorial (KMO = 0.81).
  • El análisis factorial exploratorio reveló dos factores latentes: seguridad infantil (ítems 1-3) y seguridad en la edad adulta (ítems 4-6), que explican el 75% de la varianza.
  • La puntuación total de la LSS se correlacionó negativamente con el estrés percibido (r = -0.30) y positivamente con la resiliencia (r = 0.26).

Conclusiones:

  • La escala LSS es una medida psicométricamente sólida de la seguridad percibida, con factores distintos de la infancia y la edad adulta.
  • La seguridad percibida se relaciona inversamente con el estrés y directamente con la resiliencia.
  • La escala LSS muestra potencial para la investigación sobre el "protectoma" a lo largo de la vida y su influencia en la salud cerebral.