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. 2021 Apr 20;9:653884. doi: 10.3389/fpubh.2021.653884

Table 2.

Mean (SD) observation duration (in min) of each phase for the respective group.

O1 O2 O3 O4 O5
IG 5.94 (2.76) 4.66 (1.83) 8.37 (6.09) 0.49 (0.20) 1.63 (0.61)
CG 4.85 (1.87) 4.49 (1.78) 10.07 (8.83) 0.74 (0.39) 1.44 (0.41)