Table 3 Change in weight status in a cohort of Australian school children from 2007 to 2012 by gender and SES
Males (N = 478) | Females (N = 458) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | ||
% (N) | % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | ||
Total sample | 478 | 403 | 383 | 367 | 395 | 361 | Total sample | 457 | 411 | 375 | 371 | 377 | 334 |
Obese | 4.8 (23) | 4.2 (17) | 4.7 (18) | 5.2 (19) | 5.1 (20) | 5.8 (21) | 3.3 (15) | 2.9 (12) | 4.0 (15) | 3.8 (14) | 4.5 (17) | 6.3 (21) | |
Overweight | 15.9 (7.6) | 16.1 (65) | 17.2 (66) | 17.4 (64) | 16.2 (64) | 17.2 (62) | 17.3 (79) | 16.8 (69) | 19.2 (72) | 20.2 (75) | 18.8 (71) | 16.2 (5.4) | |
Normal | 76.6 (366) | 75.2 (303) | 73.6 (282) | 73.3 (269) | 74.7 (295) | 73.7 (266) | 74.8 (342) | 75.4 (310) | 71.7 (269) | 69.3(257) | 71.1 (268) | 72.5(242) | |
Thin | 2.7 (13) | 4.5 (18) | 4.4 (17) | 4.1 (15) | 4.1 (16) | 3.3 (12) | 4.6 (21) | 4.9 (20) | 5.1 (19) | 6.7 (25) | 5.6 (21) | 5.1 (17) | |
SES | SES | ||||||||||||
Low SES (N = 159) | Low SES (N = 175) | ||||||||||||
Obese | 8.2 (13) | 5.1 (7) | 5.3 (7) | 8.0 (9) | 7.1 (9) | 4.6 (5) | Obese | 6.3 (11) | 5.7 (9) | 5.6 (8) | 5.2 (7) | 7.1 (10) | 8.3 (10) |
Overweight | 14.5 (23) | 17.6 (24) | 19.1 (25) | 17.7 (20) | 17.3 (22) | 22.0 (24) | Overweight | 17.0 (30) | 15.9 (25) | 18.8 (27) | 22.2 (30) | 20.7 (29) | 20.0 (24) |
Normal | 74.8 (119) | 74.3 (101) | 73.3 (96) | 71.7 (81) | 74.0 (94) | 69.7 (76) | Normal | 72.2 (126) | 70.7 (111) | 72.2 (104) | 68.9 (93) | 69.3 (97) | 67.5 (81) |
Thin | 2.5 (4) | 2.9 (4) | 2.3 (3) | 2.7 (3) | 1.6 (2) | 3.7 (4) | Thin | 4.5 (8) | 7.6 (12) | 3.5 (5) | 3.7 (5) | 2.9 (4) | 4.2 (5) |
Middle SES (N = 161) | Middle SES (N = 143) | ||||||||||||
Obese | 4.3 (7) | 5.2 (7) | 5.1 (6) | 5.9 (7) | 5.7 (7) | 9.5 (11) | Obese | 2.1 (3) | 2.4 (3) | 2.7 (3) | 4.6 (5) | 4.4 (5) | 6.9 (7) |
Overweight | 17.4 (28) | 16.4 (22) | 18.8 (22) | 19.3 (23) | 17.9 (22) | 17.2 (20) | Overweight | 16.8 (24) | 18.5 (23) | 22.1 (25) | 19.4 (21) | 15.9 (18) | 14.9 (15) |
Normal | 75.8 (122) | 73.9 (99) | 70.9 (83) | 72.3 (86) | 71.5 (88) | 71.6 (83) | Normal | 74.1 (106) | 74.2 (92) | 67.3 (76) | 65.7 (71) | 70.8 (80) | 71.3 (72) |
Thin | 2.5 (4) | 4.5 (6) | 5.1 (6) | 2.5 (3) | 4.9 (6) | 1.7 (2) | Thin | 7.0 (10) | 4.8 (6) | 8.0 (9) | 10.2 (11) | 8.8 (10) | 6.9 (7) |
High SES (N = 158) | High SES (N = 139) | ||||||||||||
Obese | 1.9 (3) | 2.3 (3) | 3.7 (5) | 2.2 (3) | 2.8 (4) | 3.7 (5) | Obese | 0.7 (1) | 0 (0) | 3.4 (4) | 1.6 (2) | 1.6 (2) | 3.5 (4) |
Overweight | 15.8 (25) | 14.3 (19) | 14.1 (19) | 15.6 (21) | 13.8 (20) | 13.2 (18) | Overweight | 18.0 (25) | 16.2 (21) | 16.9 (20) | 18.8 (24) | 19.4 (24) | 13.3 (15) |
Normal | 79.1 (125) | 77.4 (103) | 76.3 (103) | 75.6 (102) | 77.9 (113) | 78.7 (107) | Normal | 79.1 (110) | 82.3 (107) | 75.4 (89) | 72.7 (93) | 73.4 (91) | 78.8 (89) |
Thin | 3.2 (5) | 6.0 (8) | 5.9 (8) | 6.7 (9) | 5.5 (8) | 4.4 (6) | Thin | 2.2 (3) | 1.5 (2) | 4.2 (5) | 7.0 (9) | 5.6 (7) | 4.4 (5) |
Chi Square | 7.4 | 3.9 | 4.1 | 8.2 | 6.8 | 8.9 | 12.4 | 15.2 | 5.6 | 7.2 | 9.4 | 6.0 | |
P value | 0.29 | 0.70 | 0.67 | 0.22 | 0.34 | 0.18 | 0.054 | 0.02* | 0.47 | 0.30 | 0.15 | 0.42 | |