. 2017 Sep 19;12(9):e0184862. doi: 10.1371/journal.pone.0184862

Table 10. Mann-Whitney tests of differences in doctors’ knowledge indices across professional status groups.

PROFESIONAL STATUS	Mean rank	Mann-Whitney U
Intern and Resident	39.7	U = 737.5, p = .16
Non-specialist doctor and specialist doctor under the training	47.0	U = 737.5, p = .16

Intern and Resident	127.4	U = 4850.0, p < .01
Specialist doctor	170.2	U = 4850.0, p < .01

Intern and Resident	30.5	U = 304.5, p = .67
Other	32.8	U = 304.5, p = .67

Non-specialist doctor and specialist doctor under the training	144.9	U = 4766.5, p = .28
Specialist doctor	161.5	U = 4766.5, p = .28

Non-specialist doctor and specialist doctor under the training	27.0	U = 244.5, p = .65
Other	25.0	U = 244.5, p = .65

Specialist doctor	148.6	U = 1638.5, p = .28
Other	124.5	U = 1638.5, p = .28