Table 2

Description of the sample
Sample characteristics N Argentina Brazil Mexico Total P-value
(N = 120) (N = 360) (N = 120) (N = 600)
Child BMI 600 14.91/16.43/19.01 14.99/16.35/18.12 14.88/16.40/18.79 14.91/16.37/18.35 p = 0.781
Mother BMI 485 21.49/23.04/26.15 22.31/25.66/28.77 23.32/24.65/25.54 22.22/24.54/27.48 p < 0.001
Father BMI 340 24.82/26.99/29.06 22.77/25.12/27.68 24.74/25.47/26.34 24.22/25.75/27.58 p < 0.001
Neonatal feeding Breast-feeding 553 77% (90) 93% (299) 50% (57) 81% (446) p < 0.001
Bottle-feeding 12% (14) 6% (18) 26% (29) 11% (61)
Mixed (breast + bottle) 11% (13) 2% (6) 24% (27) 8% (46)
Number of sisters 0 600 52% (62) 44% (159) 68% (82) 50% (303) p < 0.001
1 38% (46) 35% (125) 30% (36) 34% (207)
2 9% (11) 13% (46) 2% (2) 10% (59)
3 1% (1) 5% (18) 0% (0) 3% (19)
4 0% (0) 2% (7) 0% (0) 1% (7)
5 0% (0) 0% (1) 0% (0) 0% (1)
6 0% (0) 1% (4) 0% (0) 1% (4)
Number of brothers 0 840 57% (69) 40% (144) 57% (69) 47% (282) p < 0.001
1 32% (39) 34% (122) 40% (48) 35% (209)
2 9% (11) 17% (60) 2% (2) 12% (73)
3 1% (1) 7% (26) 1% (1) 5% (28)
4 0% (0) 1% (5) 0% (0) 1% (5)
5 0% (0) 0% (1) 0% (0) 0% (3)
6 0% (0) 0% (1) 0% (0) 0% (1)
8 0% (0) 0% (1) 0% (0) 0% (1)
Frequency of breakfast before school 2-3 times per week 600 5% (6) 5% (19) 4% (5) 5% (30) p = 0.024
3-4 times per week 8% (10) 4% (15) 12% (15) 7% (40)
Never 11% (13) 10% (37) 4% (5) 9% (55)
Every day 76% (91) 80% (289) 79% (95) 79% (475)
Daily fruit portions 1 600 52% (63) 31% (111) 42% (51) 38% (225) p < 0.001
2 22% (27) 30% (107) 48% (57) 32% (191)
3 8% (9) 12% (42) 6% (7) 10% (58)
4 2% (2) 6% (20) 2% (2) 4% (24)
None 12% (15) 14% (51) 2% (2) 11% (68)
More than 4 3% (4) 8% (29) 1% (1) 6% (34)
Daily vegetable portions 1 600 56% (67) 29% (106) 41% (49) 37% (222) p < 0.001
2 28% (33) 15% (55) 37% (44) 22% (132)
3 2% (3) 4% (13) 18% (22) 6% (38)
4 2% (2) 2% (7) 2% (3) 2% (12)
None 12% (15) 47% (168) 1% (1) 31% (184)
More than 4 0% (0) 3% (11) 1% (1) 2% (12)
TV viewing (hours/week) 600 12.75/18.00/28.00 7.75/15.00/24.00 9.00/11.00/13.00 9.00/14.00/23.00 p < 0.001
Television set at home (n°) 600 2.00/3.00/3.00 1.00/1.00/2.00 2.00/2.00/2.00 1.00/2.00/2.00 p < 0.001
IBAI score 600 4.00/ 8.00/14.00 7.00/11.00/16.00 8.75/16.50/24.00 7.00/11.00/17.00 p < 0.001

Values for the categorical variables are expressed as a percentage (absolute numbers in parentheses) and those for continuous variables as the median (I quartile / median / III quartile).

Gregori et al.

Gregori et al. Nutrition Journal 2013 12:95   doi:10.1186/1475-2891-12-95

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