Cohort Profile: The Mexican Teachers’ Cohort (MTC)

Lajous, Martín; Ortíz-Panozo, Eduardo; Monge, Adriana; Santoyo-Vistrain, Rocío; García-Anaya, Antonio; Yunes-Díaz, Elsa; Rice, Megan S.; Blanco, Mónica; Hernández-Ávila, Mauricio; Willett, Walter C.; Romieu, Isabelle; López‐Ridaura, Ruy

doi:10.1093/ije/dyv123

Cited by 52 publications

(59 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ESMaestras cohort has been described in detail previously (11). Briefly, ESMaestras was formed when 28,345 female teachers aged 35 years and over in the Mexican states of Jalisco and Veracruz replied to a baseline questionnaire in 2006.…”

Section: Methodsmentioning

confidence: 99%

Metabolic Syndrome and Mammographic Density in Mexican Women

Rice

Biessy

Lajous

et al. 2013

Cancer Prevention Research

Self Cite

View full text Add to dashboard Cite

Background Metabolic syndrome has been associated with an increased risk of breast cancer; however little is known about the association between metabolic syndrome and percent mammographic density, a strong predictor of breast cancer. Methods We analyzed cross-sectional data from 789 premenopausal and 322 postmenopausal women in the Mexican Teacher's Cohort (ESMaestras). Metabolic syndrome was defined according to the harmonized definition. We measured percent density on mammograms using a computer-assisted thresholding method. Multivariable linear regression was used to estimate the association between density and metabolic syndrome, as well as its components by state (Jalisco, Veracruz) and menopausal status (premenopausal, postmenopausal). Results Among premenopausal women in Jalisco, women with metabolic syndrome had higher percent density compared to those without after adjusting for potential confounders including BMI (difference = 4.76, 95%CI: 1.72, 7.81). Among the metabolic syndrome components, only low high-density lipoprotein levels (<50mg/dl) were associated with significantly higher percent density among premenopausal women in Jalisco (difference=4.62, 95%CI: 1.73, 7.52). Metabolic syndrome was not associated with percent density among premenopausal women in Veracruz (difference=-2.91, 95% CI: -7.19, 1.38), nor among postmenopausal women in either state. Conclusion Metabolic syndrome was associated with higher percent density among premenopausal women in Jalisco, Mexico, but was not associated with percent density among premenopausal women in Veracruz, Mexico or among postmenopausal women in either Jalisco or Veracruz. These findings provide some support for a possible role of metabolic syndrome in mammographic density among premenopausal women; however results were inconsistent across states and require further confirmation in larger studies.

show abstract

Section: Methodsmentioning

confidence: 99%

Metabolic Syndrome and Mammographic Density in Mexican Women

Rice

Biessy

Lajous

et al. 2013

Cancer Prevention Research

Self Cite

View full text Add to dashboard Cite

show abstract

“…Participant selection, distribution of instruments and data collection procedures for the MTC has been previously described. 10 Briefly, between 2006 and 2008, eligible female teachers were identified through an administrative database. A baseline self-administered questionnaire was distributed to assess socio-demographic and reproductive characteristics, diet, lifestyle, risk factors for chronic diseases and medical conditions.…”

Section: Study Population and Analytical Samplementioning

confidence: 99%

“…The final analytical sample included 3 756 female teachers, who had direct and self-reported anthropometric data on either weight and height (n=3 413) or waist and hip circumferences (n=3 258). The median time from self-reported to direct anthropometric measures was 11 months (inter-quartile range [7][8][9][10][11][12][13][14][15].…”

Section: Study Population and Analytical Samplementioning

confidence: 99%

Validity of self-reported anthropometry in adult Mexican women

Ortíz-Panozo¹,

Yunes-Díaz²,

Lajous³

et al. 2017

Salud Publica Mex

Self Cite

View full text Add to dashboard Cite

Objective. To compare direct and self-reported anthropometry in Mexican women. Materials and methods. Women aged 30-72 years, participating in the Mexican Teachers' Cohort, completed a questionnaire with their anthropometric data in 2006-2008. After eleven months (median time), technicians performed anthropometry in 3 756 participants. We calculated correlations and multivariable-adjusted mean differences between direct and self-reported anthropometric measures. Results. Correlations between direct and self-reported anthropometric measures ranged from 0.78 (waist circumference) to 0.93 (weight). On average, women over-reported their height by 2.2 cm and underreported their weight, body mass index (BMI) and waist and hip circumferences by 1.3 kg, 1.3 kg/m 2 , 1.8 cm and 1.9 cm, respectively. Errors in self-reported anthropometry increased with rising measured BMI and were also independently associated with age, education and socioeconomic status. Conclusion. Self-reported anthropometry is sufficiently valid for epidemiological purposes in adult Mexican women. Errors in selfreported anthropometry might result in underestimation of the prevalence of overweight and obesity.

show abstract

“…A detailed description of the cohort can be found elsewhere 15. Briefly, recruitment for the study was initiated in 2006 when 27 979 female public school teachers, aged 35 years and older from two Mexican states (Jalisco and Veracruz), replied to a baseline questionnaire.…”

Section: Methodsmentioning

confidence: 99%