A possible exception is incomplete outcome data which could lead to underestimation of the intervention effect in some circumstances (for example, if a proportion of intervention participants leave the study because they have increased their physical activity).
To determine whether the desired increases in activity were feasible, time spent performing standing and walking activities during intervention sessions as a proportion of the intervention target time were calculated.
A proportion of one intervention for each control was determined [1 1 ratio], with a significance level of 5% and an 80% power of the test, resulting in 192 subjects to be randomized into two groups.
In contrast, in the study of Buchan et al. (2003) of yellow baboons, males provided a greater proportion of interventions to genetic offspring than to both unrelated juveniles they could not have sired and unrelated juveniles they might have sired.
As in the previously described RE-LY trial, there was a proportion of participants undergoing interventions during the study who were switched from enoxaparin to ximelagatran.
As we wrote in the Materials and methods section of our article [ 2], we used a sealed envelope, simple randomization procedure in a 1 1 proportion of intervention to control.
Self-reported overall breast cancer screening need scores improved for a greater proportion of intervention than control physicians, particularly those receiving the in-office intervention (P=0.03).
A higher proportion of intervention patients than controls had HbA1c below the 7.5% (58 mmol/mol) threshold that was targeted by general practices (30.4% vs. 38.0%).
An implication of this was that a considerable number of screening survey respondents would not be able to be matched as their profiles corresponded with only a small proportion of intervention participants with higher scores.
More information is available in the Supplementary data online, Appendix S2.> -wrap-foot> A similar proportion of intervention and control participants were admitted to permanent residential and nursing care during the 12 months (3.1 and 3.2%, respectively).
