| 2004 (n = 2435) | 2006 (n = 1971) | 2009 (n = 1934) | 2011 (n = 2318) | 2015 (n = 2461) | Time trend p value |
Age, years, mean (SD) | 14.50 (5.09) | 14.21 (5.32) | 14.72 (5.59) | 13.99 (5.75) | 13.71 (5.65) | <0.001 |
Age groups |
|
|
|
|
|
|
6 - 10 | 484 (19.9) | 474 (24.0) | 423 (21.9) | 643 (27.7) | 727 (24.7) | <0.001 |
11 - 18 | 1269 (52.1) | 925 (46.9) | 836 (43.2) | 1008 (43.5) | 1025 (41.6) |
|
19 - 24 | 682 (28.0) | 572 (29.0) | 675 (34.9) | 667 (28.8) | 709 (28.8) |
|
Gender |
|
|
|
|
|
|
Boy | 1289 (52.9) | 1056 (53.6) | 1054 (54.5) | 1170 (50.5) | 1286 (52.3) | 0.093 |
Girl | 1146 (47.1) | 915 (46.4) | 880 (45.5) | 1148 (49.5) | 1175 (47.7) |
|
Region |
|
|
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|
|
|
Urban | 749 (30.8) | 639 (32.4) | 566 (29.3) | 899 (38.7) | 798 (32.4) | <0.001 |
Rural | 1686 (69.2) | 1332 (67.6) | 1368 (70.7) | 1420 (61.3) | 1663 (67.6) |
|
Urbanization index |
|
|
|
|
|
|
Low; | 922 (37.9) | 633 (32.1) | 464 (24.0) | 448 (19.3) | 314 (12.8) | <0.001 |
Medium; P25 - P75 | 1157 (47.5) | 932 (47.3) | 1036 (53.6) | 1021 (44.0) | 1419 (57.7) |
|
High; ≥P75 | 356 (14.6) | 406 (20.6) | 434 (22.4) | 849 (36.6) | 727 (29.6) |
|
BMI, kg/m2, mean (SD) | 18.73 (0.07) | 18.67 (0.08) | 18.85 (0.09) | 19.27 (0.10) | 19.79 (0.13) | <0.001 |
Overweight/obesity |
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|
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|
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No | 1856 (88.6) | 1486 (86.6) | 1403 (84.2) | 1708 (79.3) | 1460 (75.6) | <0.001 |
Yes | 239 (11.4) | 230 (13.4) | 264 (15.8) | 446 (20.7) | 471 (24.4) |
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