Abstract
PURPOSE: To evaluate the extent to which levels of physical activity and nutrient intake aggregate in families, and secondarily, to assess the repeatability of these behavioral measures over a 5-year period. METHODS: Measurements were obtained in a population-based sample consisting of 1364 members of 42 large Mexican American families. Nutrient intake was assessed by a food frequency questionnaire validated for use in this population. Usual level of physical activity was estimated using a 7-day recall questionnaire. RESULTS: Correlations between baseline (obtained 1992-1995) and follow-up (obtained 1996 to 2000) measures of all behaviors were highly significant (p < 0.001), ranging from 0.24 for % of calories derived from fat to 0.44 for % of calories derived from alcohol. Familial effects, estimated using variance component methods, were stronger when modeled as a genetic heritability than as a shared household effect; as a heritability they accounted for a significant portion of the total variation of all traits (9% for physical activity levels, p < 0.05; and 13-26% for nutrient intake, p < 0.001 for all). CONCLUSIONS: Measurements of physical activity and dietary behaviors in this population tracked over 5 years, and there was a significant degree of aggregation of these behaviors within families. Understanding the sources of these family effects may facilitate efforts to improve cardiovascular health.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 128-135 |
| Number of pages | 8 |
| Journal | Annals of Epidemiology |
| Volume | 13 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2003 |
| Externally published | Yes |
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Keywords
- Diet
- Family Study
- Heritability
- Mexican Americans
- Physical Activity
ASJC Scopus subject areas
- Medicine(all)
- Public Health, Environmental and Occupational Health
- Epidemiology
Cite this
Familial aggregation of nutrient intake and physical activity : Results from the San Antonio Family Heart Study. / Mitchell, Braxton D.; Rainwater, David L.; Hsueh, Wen Chi; Kennedy, Amy J.; Stern, Michael P.; Maccluer, Jean W.
In: Annals of Epidemiology, Vol. 13, No. 2, 02.2003, p. 128-135.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Familial aggregation of nutrient intake and physical activity
T2 - Results from the San Antonio Family Heart Study
AU - Mitchell, Braxton D.
AU - Rainwater, David L.
AU - Hsueh, Wen Chi
AU - Kennedy, Amy J.
AU - Stern, Michael P.
AU - Maccluer, Jean W.
PY - 2003/2
Y1 - 2003/2
N2 - PURPOSE: To evaluate the extent to which levels of physical activity and nutrient intake aggregate in families, and secondarily, to assess the repeatability of these behavioral measures over a 5-year period. METHODS: Measurements were obtained in a population-based sample consisting of 1364 members of 42 large Mexican American families. Nutrient intake was assessed by a food frequency questionnaire validated for use in this population. Usual level of physical activity was estimated using a 7-day recall questionnaire. RESULTS: Correlations between baseline (obtained 1992-1995) and follow-up (obtained 1996 to 2000) measures of all behaviors were highly significant (p < 0.001), ranging from 0.24 for % of calories derived from fat to 0.44 for % of calories derived from alcohol. Familial effects, estimated using variance component methods, were stronger when modeled as a genetic heritability than as a shared household effect; as a heritability they accounted for a significant portion of the total variation of all traits (9% for physical activity levels, p < 0.05; and 13-26% for nutrient intake, p < 0.001 for all). CONCLUSIONS: Measurements of physical activity and dietary behaviors in this population tracked over 5 years, and there was a significant degree of aggregation of these behaviors within families. Understanding the sources of these family effects may facilitate efforts to improve cardiovascular health.
AB - PURPOSE: To evaluate the extent to which levels of physical activity and nutrient intake aggregate in families, and secondarily, to assess the repeatability of these behavioral measures over a 5-year period. METHODS: Measurements were obtained in a population-based sample consisting of 1364 members of 42 large Mexican American families. Nutrient intake was assessed by a food frequency questionnaire validated for use in this population. Usual level of physical activity was estimated using a 7-day recall questionnaire. RESULTS: Correlations between baseline (obtained 1992-1995) and follow-up (obtained 1996 to 2000) measures of all behaviors were highly significant (p < 0.001), ranging from 0.24 for % of calories derived from fat to 0.44 for % of calories derived from alcohol. Familial effects, estimated using variance component methods, were stronger when modeled as a genetic heritability than as a shared household effect; as a heritability they accounted for a significant portion of the total variation of all traits (9% for physical activity levels, p < 0.05; and 13-26% for nutrient intake, p < 0.001 for all). CONCLUSIONS: Measurements of physical activity and dietary behaviors in this population tracked over 5 years, and there was a significant degree of aggregation of these behaviors within families. Understanding the sources of these family effects may facilitate efforts to improve cardiovascular health.
KW - Diet
KW - Family Study
KW - Heritability
KW - Mexican Americans
KW - Physical Activity
UR - http://www.scopus.com/inward/record.url?scp=0037305409&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037305409&partnerID=8YFLogxK
U2 - 10.1016/S1047-2797(02)00255-7
DO - 10.1016/S1047-2797(02)00255-7
M3 - Article
VL - 13
SP - 128
EP - 135
JO - Annals of Epidemiology
JF - Annals of Epidemiology
SN - 1047-2797
IS - 2
ER -