Table 4 Logistic regression of use of clustering analysis for multiple centers by predictors (N = 87)

Any specialist⁽⁶⁴⁾

2.3

0.2-20.7 (0.47)

Both specialists⁽⁵⁸⁾

1.4

0.4-4.7 (0.60)

Biostatistician⁽⁶⁴⁾

1.8

0.5-7.9 (0.35)

Epidemiologist/Methodologist⁽⁵⁸⁾

1.1

0.3-4.9 (0.87)

Sample size⁽⁸⁶⁾

1.0

1.0-1.0 (0.94)

Journal⁽⁸⁷⁾

1.4

1.0-2.0 (0.07)

Impact factor⁽⁸⁷⁾

1.4

0.6-2.9 (0.41)

Outcome⁽⁸⁷⁾

1.3

0.6-3.0 (0.51)

Outcome2⁽⁸⁷⁾

1.3

0.7-2.4 (0.38)