Table 3.

Percentage of respondents who selected each option

Question	Percentage of total respondents (%, n = 1030)	Percentage of researchers in Europe (%, n = 826)	Percentage of researchers in China (%, n = 204)	P value*	Adjusted OR (95% CI)**
Question 15. Which factor(s) do you think decides whether a body of copied and unattributed text constitutes plagiarism or not?
a. The length of the copied text	53.0	51.3	59.8	0.030	1.24 (0.86, 1.80)
b. The part of the copied text	45.2	42.6	55.4	0.001	1.91 (1.32, 2.77)
c. The presence of an intention to copy without attribution	75.3	77.4	67.2	0.002	0.59 (0.39, 0.89)
Question 16. Have you ever been unsure whether you are plagiarizing?
a. Yes	31.3	34.5	18.1	<.001	0.41 (0.26, 0.64)

^aP values based on Chi square tests when comparing Europe and China

^b ORs (with 95% CIs) based on logistic regression analysis, with adjustment for demographic variables (including age, gender, academic position, PhD, international research experience). Reference is Europe