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. 2024 Feb 28;8:e49905. doi: 10.2196/49905

Table 6.

Factors that affect grant success based on the timing of experience as a project member (2-tailed χ2 test)a.

Variable and stratumb Odds ratio (95% CI) Significance of the model, P valuec
Number of large programs

Number of projects participated in 10-14 y after doctorate


Number of projects by upper-level researchers (n=968) .11



1 (n=41) 0.62 (0.34-1.13)



2 (n=28) 0.58 (0.28-1.24)


Number of projects by peer researchers (n=968) .04d



1 (n=41) 1.12 (0.75-1.66)



2 (n=28) 1.51d (1.09-2.09)


Number of projects by subordinates (n=968) .007e



1 (n=41) 1.15 (0.94-1.42)



2 (n=28) 1.31e (1.10-1.57)

Number of projects participated in 15-19 y after doctorate


Number of projects by upper-level researchers (n=922) .23



1 (n=42) 0.32 (0.09-1.18)



2 (n=28) f


Number of projects by peer researchers (n=922) .06



1 (n=42) 1.4 (1.00-1.96)



2 (n=28) 1.36 (0.9-2.05)


Number of projects by subordinates (n=922) .02d



1 (n=42) 1.12 (0.94-1.33)



2 (n=28) 1.25e (1.06-1.47)
Number of small programs

Number of projects participated in 10-14 y after doctorate


Number of projects by upper-level researchers (n=968) <.001g



1 (n=210) 1.20 (0.88-1.62)



2 (n=186) 1.48e (1.11-1.97)



3 (n=140) 1.88g (1.42-2.49)



4 (n=174) 1.87g (1.42-2.45)


Number of projects by peer researchers (n=968) .12



1 (n=210) 0.87 (0.69-1.10)



2 (n=186) 0.69e (0.52-0.93)



3 (n=140) 0.81 (0.61-1.08)



4 (n=174) 0.80 (0.61-1.05)


Number of projects by subordinates (n=968) .43



1 (n=210) 1.02 (0.89-1.17)



2 (n=186) 0.9 (0.75-1.07)



3 (n=140) 0.88 (0.72-1.08)



4 (n=174) 0.92 (0.78-1.10)

Number of projects participated in 15-19 y after doctorate


Number of projects by upper-level researchers (n=922) .006e



1 (n=186) 1.69d (1.08-2.65)



2 (n=178) 1.68d (1.07-2.64)



3 (n=137) 2.06g (1.32-3.22)



4 (n=173) 2.20g (1.44-3.36)


Number of projects by peer researchers (n=922) .04d



1 (n=186) 0.90 (0.71-1.15)



2 (n=178) 0.60e (0.44-0.83)



3 (n=137) 0.85 (0.64-1.12)



4 (n=173) 0.83 (0.64-1.09)


Number of projects by subordinates (n=922) .17



1 (n=186) 0.93 (0.82-1.05)



2 (n=178) 0.83e (0.71-0.96)



3 (n=137) 0.94 (0.83-1.08)



4 (n=173) 0.93 (0.82-1.05)

aThe number of projects obtained by the participants as principal investigators was used as the dependent variable. The term large indicates projects from the Grant-in-Aid for Scientific Research (S) and Grant-in-Aid for Specially Promoted Research, which are considered large categories. Similarly, the term small indicates the Grant-in-Aid for Scientific Research (C), which is considered the smallest category.

bNumber of projects obtained. Cases with no corresponding acquisitions were designated as stratum 0 and used as a reference. Cases with ≥2 corresponding acquisitions were defined as stratum 2 for the large categories, and cases with ≥4 acquisitions were defined as stratum 4 for the small category.

cWald test (P<.05).

dP<.05.

eP<.01.

fNo results were output by XLSTAT software for this stratum.

gP<.001.