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. Author manuscript; available in PMC: 2014 Apr 22.
Published in final edited form as: Ann Intern Med. 2013 Apr 2;158(7):505–514. doi: 10.7326/0003-4819-158-7-201304020-00002

Appendix Table 2.

24-Week Longitudinal Weight Loss

Measure Within-Group Change Between Group Difference in Change
Control (n=35) Individual (n=35) Group (n=35) Individual vs. Control Group vs. Individual Group vs. Control
Weight loss, pounds*
 Mean 2.3 4.7 13.0 2.5 8.3 10.7
 95% CI −1.3, 5.8 0.3, 9.1 9.1, 16.9 −3.2, 8.1 2.4, 14.2 5.5, 16.0
 P value for comparison 0.39 0.006 < 0.001

Abbreviation: CI, confidence interval

Conversion factor: To convert pounds to kilograms, multiply by 0.45.

*

Measure uses only observed data. Every participant is included, utilizing only observed weight measurements.