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Table 4 Summary of univariate logistic regression analysis for reporting feasibility indicators in included studies across time (N=600)

From: Feasibility indicators in obesity-related behavioral intervention preliminary studies: a historical scoping review

Feasibility indicator

Middle Group (2011–2013)a

Late Group (2018–2020)a

N=200

N=200

Odds ratio

95% CIb

p-value

Odds ratio

95% CIb

p-value

Recruitment

1.18

0.77, 1.79

0.450

1.60

1.03, 2.49

0.036

Retentionc

1.51

0.25, 9.1

0.655

-

-

 

Acceptability

 Description of quantitative measure

1.49

0.95, 2.35

0.085

3.05

1.97, 4.72

<0.001

 Quantitative outcome

1.53

0.99, 2.35

0.051

2.68

1.76, 4.08

<0.001

 Description of qualitative measure

1.57

0.93, 2.63

0.090

3.32

2.04, 5.40

<0.001

 Qualitative outcome

1.23

0.76, 1.99

0.393

2.32

1.48, 3.65

<0.001

Attendance

 Description of measure

1.16

0.68, 1.96

0.590

1.49

0.89, 2.49

0.124

 Outcome

1.14

0.76, 1.73

0.527

0.96

0.63, 1.45

0.830

Compliance

 Description of measure

1.36

0.85, 2.17

0.194

2.04

1.30, 3.20

0.002

 Outcome

1.20

0.77, 1.88

0.424

2.29

1.49, 3.52

<0.001

 Cost

0.62

0.19,1.91

0.261

1.26

0.49,3.27

0.193

Treatment fidelity

 Description of measure

1.96

1.11, 3.45

0.019

2.56

1.48, 4.42

0.001

 Outcome

1.16

0.62, 2.16

0.635

2.13

1.21, 3.77

0.009

 Mentioned feasibility-related parameters in purpose statement

1.38

0.93, 2.05

0.109

2.38

1.58, 3.61

<0.001

 Cited a guideline/framework for the reporting of preliminary studies

5.76

1.26, 26.3

0.024

28.74

6.87, 120.3

<0.001

  1. Note: aEarly Group (1982–2006, N=200) is the referent group
  2. b95% CI stands for 95% confidence interval
  3. cLate Group (2018–2020) retention variable had no observations coded as 0. Bold denotes significance at the p < 0.005 level