Objectives: This study aims to assess the secular trend in age at menarche (AAM) in Mexico over the 20th century, and compare the patterns according to area of residence (rural/urban), socioeconomic status (SES), and ethnicity (indigenous/nonindigenous). Methods: Data on AAM from 24 380 women aged ≥20 years born between 1906 and 1986 were obtained from the Mexican National Health and Nutrition Survey 2006. Birth cohorts were compared to test for a secular trend and differences in mean AAM by area of residence, SES, and ethnicity were evaluated using the Welch test for heterogeneous variances followed by Tamhane T 2 for post hoc comparisons. Results: Mean AAM declined from 13.3 years among Mexican women born

The objective of this study was to explore the beliefs and attitudes toward menopause among young and middle-aged Mexican women and men, as well as the menopausal-related symptoms that middle-aged women report or expect and that other participants think a menopausal woman experiences. The beliefs about and attitudes toward Menopause Questionnaire and the Greene Climacteric Scale were answered by 395 Mexicans between the ages of 20 and 60 years. Comparing middle-aged participants, the most negative attitudes toward menopause were held by surgically menopausal women, and the most positive attitudes by naturally postmenopausal women. Younger participants showed more negative attitudes when compared to those in middle age (with exception of surgically menopausal women). There was a positive correlation between negative attitudes and menopausal-related symptoms either experienced by perimenopausal and naturally postmenopausal women, or expected by young and premenopausal women. No significant correlation was found between attitudes and symptoms in the groups of surgically menopausal women or the men. These findings are discussed in light of differences between genders and age cohorts.

No abstract

No abstract

Resumen: Objetivo: validar la versión en español del Inventario de Fatalismo de Powe (SPFI) en población mexicana con cáncer. Método: Se aplicó el SPFI a 133 mujeres con cáncer de mama. Se realizó un análisis factorial con rotación Oblimin. Posteriormente se evaluó la consistencia interna con el coeficiente Alfa de Cronbach y por último se realizaron análisis de correlación entre los factores del cuestionario. El instrumento resultante se nombró Inventario de Fatalismo de Powe en Español-Cáncer (IFPE-C).Resultados: Se eliminaron siete de los 15 reactivos originales y se conservaron ocho, todos ellos con cargas factoriales superiores a 0,40. Se obtuvo una estructura de tres factores que explicaron el 73,7% de la varianza y se llamaron: Inutilidad del tratamiento con un α=0,85, Predestinación con un α=0,918 y Pensamientos de muerte con un α=0,73. La consistencia interna para la escala global fue de α =0,80. Se obtuvieron correlaciones estadísticamente significativas entre los factores. Conclusión: el IFPE-C demostró ser un instrumento valido y confiable, que puede ser utilizado tanto en entornos clínicos como de investigación para identificar las creencias fatalistas acerca del cáncer de los pacientes. Palabras clave: fatalismo, Inventario de Fatalismo de Powe, validación, cáncer.