Table 1 |
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|
Sociodemographic characteristics of study children |
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|
Total sample (N = 649) |
Sub-sample (N = 173)† |
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|
|
|
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|
Sociodemographics |
Boys (%) |
Girls (%) |
Total (%) |
p** |
Boys (%) |
Girls (%) |
Total |
p** |
|
|
|
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|
School type |
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|
Public |
219 (47.9) |
238 (52.1) |
457 (70.4) |
60 (49.6) |
61 (50.4) |
121 (69.9) |
||
|
0.808 |
0.518 |
|||||||
|
Private |
90 (46.9) |
102 (53.1) |
192 (29.6) |
23 (44.2) |
29 (55.8) |
52 (30.1) |
||
|
School location |
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|
Urban area |
259 (47.7) |
284 (52.3) |
543 (83.7) |
69 (47.6) |
76 (52.4) |
145 (83.8) |
||
|
0.921 |
0.815 |
|||||||
|
Peri-urban area |
50 (47.2) |
56 (52.8) |
106 (16.3) |
14 (50.0) |
14 (50.0) |
28 (16.2) |
||
|
Age (years) |
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|
Mean++ |
11.5 ± 1.2 |
11.5 ± 1.2 |
11.5 ± 1.2 |
0.780* |
11.6 ± 1.3 |
11.6 ± 1.3 |
11.6 ± 1.3 |
0.919* |
|
7-9 |
31 (49.2) |
32 (50.8) |
63 (9.7) |
10 (58.8) |
7 (41.2) |
17 (9.8) |
||
|
10-12 |
241 (47.5) |
266 (52.5) |
507 (78.1) |
0.959 |
59 (46.5) |
68 (53.5) |
127 (73.4) |
0.631 |
|
13-14 |
37 (46.8) |
42 (53.2) |
79 (12.2) |
14 (48.3) |
15 (51.7) |
29 (16.8) |
||
|
|
||||||||
|
Total |
309 (47.6) |
340 (52.4) |
649 (100) |
83 (48.0) |
90 (52.0) |
173 (100) |
||
|
|
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|
++ Mean age ± SD * Independent t-test ** χ2 test † 208 children (half boys) were randomly selected to assess vitamin A status. Because of the impact of puberty and age on body measurements, we excluded subjects older than 14 years and those whose date of birth was not known. Then 173 subjects in the sub-sample with complete data were retained for the analyses. |
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|
Daboné et al. Nutrition Journal 2011 10:34 doi:10.1186/1475-2891-10-34 |
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