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Table 1 Changes in the living conditions of the participant’s families during follow-up period

From: Are there changes in the nutritional status of children of Oportunidades families in rural Chiapas, Mexico? A cohort prospective study

Year of evaluation 2002–2003 2004–2005 2010–2011 p a
Number of people 1093 1106 1060  
Mean age in years of the children’s mothers (SD) 27.31 (6.77) 29.43 (8.05) 36.83 (7.95) p = 0.000
Children under 5 years old, global and by sexb     
Total 26.2 % 23 % 10.6 % p = 0.000
Men 11.7 % 11.2 % 4.8 % p = 0.000
Women 14.5 % 11.8 % 5.8 % p = 0.000
Illiterate population over 15 years old 35.2 % 30.7 % 22.4 % p = 0.000
No-schooling population over 15 years old 31.7 % 27.3 % 22.5 % p = 0.000
Number of homes visited 159 157 157  
Homes with dirty floor 93.7 % 84.3 % 15.1 % p = 0.000
Houses with electricity 93.1 % 97.5 % 100.0 % p = 0.001
Homes with refrigerator 9.4 % 14.5 % 40.3 % p = 0.000
Houses with TV 32.7 % 50.9 % 66.7 % p = 0.000
Households with piped water 78.6 % 81.8 % 97.5 % p = 0.000
Overcrowded housings 91.2 % 92.5 % 72.3 % p = 0.000
Families who eat red meat once a month 23.3 % 30.8 % 40.3 % p = 0.005
Average income from Progresa-Oportunidades per person (USD) $6.91 $8.91 $29.38 p = 0.000
  1. aOn a chi-square test for proportions and F test for averages
  2. bIn the first, second, and third evaluation, all children were under 5 years of age. In the second evaluation, only cohort children still under 5 years of age were included; the other children were their brothers and sisters who fulfill the criteria of being under 5 years of age. In the third evaluation, any children from the cohort were included for being older than 5 years of age