Table 2 Characteristics of the children who completed questionnaires
|  | Year 3 (Baseline) (n = 2611) | Statistical differencea | Year 5 (Final) (n = 1873) | Statistical differenceb | ||
|---|---|---|---|---|---|---|
| Â | INT (n, %) | COMP (n, %) | P value | INT (n, %) | COMP (n, %) | P value |
All | 1373 (52.6) | 1238 (47.4) | Â | 1092 (58.3) | 781 (41.7) | Â |
Sex | Â | Â | 0.199 | Â | Â | 0.040 |
 Boys | 700 (51.0) | 600 (48.5) |  | 490 (44.9) | 388 (49.7) |  |
 Girls | 673 (49.0) | 638 (51.5) |  | 602 (55.1) | 393 (50.3) |  |
Localityc |  |  | < 0.001 |  |  | < 0.001 |
 Urban | 965 (70.3) | 741 (59.9) |  | 705 (64.6) | 574 (73.7) |  |
 Rural | 408 (29.7) | 497 (40.1) |  | 387 (35.4) | 205 (26.3) |  |
Age, years | Â | Â | 0.051 | Â | Â | 0.125 |
 ≤9 | 374 (27.3) | 379 (30.6) |  | 340 (31.1) | 214 (27.4) |  |
 10 | 481 (35.1) | 447 (36.1) |  | 380 (34.8) | 270 (34.6) |  |
 ≥11 | 514 (37.5) | 412 (33.3) |  | 372 (34.0) | 297 (38.0) |  |
SESd |  |  | < 0.001 |  |  | < 0.001 |
 Quintile 1 | 271 (19.7) | 88 (7.1) |  | 268 (24.5) | 54 (6.9) |  |
 Quintile 2 | 421 (30.7) | 220 (17.8) |  | 217 (19.9) | 140 (17.9) |  |
 Quintile 3 | 328 (23.9) | 198 (16.0) |  | 251 (23.0) | 223 (28.6) |  |
 Quintile 4 | 237 (17.3) | 607 (49.0) |  | 334 (30.6) | 364 (46.6) |  |
 Quintile 5 | 116 (8.4) | 124 (10.0) |  | 22 (2.0) | 0 (0) |  |
Phase |  |  | < 0.001 |  |  | 0.097 |
 1 | 884 (64.4) | 613 (49.5) |  | 657 (60.2) | 440 (56.3) |  |
 2 | 489 (35.6) | 625 (50.5) |  | 435 (39.8) | 341 (43.7) |  |