Table 4.
Distribution of obesity at baseline and 2-year follow-up according to subgroups identified using recursive partitioning analysis among 462 QUALITY study participants at 2 year follow-up (2005–2011)
| Recursive partitioning subgroups | Obese at baseline | Obese at follow-up | BMI % at baseline | BMI % at follow-up | Change in BMI % |
|---|---|---|---|---|---|
| (n) | % (n) | Mean (sd) | |||
| Group 1 (123) | 7.3 (9) | 8.9 (11) | 56.1 (28.2) | 55.8 (29.0) | −0.3 (14.2) |
| Group 2 (88) | 11.4 (10) | 13.6 (12) | 67.0 (24.7) | 67.0 (25.1) | 0.01 (11.7) |
| Group 3 (140) | 24.3 (34) | 27.1 (38) | 70.3 (27.9) | 72.4 (27.2) | 2.1 (12.3) |
| Group 4 (37) | 27.0 (10) | 16.2 (6) | 76.2 (24.2) | 73.8 (25.4) | −2.3 (12.9) |
| Group 5 (34) | 38.2 (13) | 35.3 (12) | 78.8 (28.6) | 80.0 (27.6) | 1.1 (6.7) |
| Group 6 (23) | 60.9 (14) | 65.2 (15) | 87.2 (21.3) | 85.0 (24.9) | −2.3 (10.6) |
| Group 7 (17) | 58.8 (10) | 70.6 (12) | 88.3 (19.7) | 87.7 (23.2) | −0.56 (10.7) |
| Total (462) | 21.7 (100) | 22.9 (106) | 68.5 (28.1) | 68.8 (28.3) | 0.3 (12.4) |
Abbreviations: BMI, Body mass index; QUALITY, Quebec Adipose and Lifestyle Investigation in Youth.