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. 2020 Apr 27;17(9):3045. doi: 10.3390/ijerph17093045

Table 3.

Answers from children in the study and control group.

Are You Annoyed by “…” Number of Children that Considered the Sound Annoying
Study Group (n = 30) Control Group (n = 30)
School recess 10 (33.3%) 4 (13.3%)
Classroom noise 16 (53.3%) 6 (20%)
Screams 16 (53.3%) 8 (26.7%)
School bell 11 (36.7%) 6 (20%)
TV 3 (10%) 3 (10%)
Radio 3 (10%) 1 (3.3%)
Mixer 8 (26.7%) 4 (13.3%)
Telephone 2 (6.7%) 1 (3.3%)
Car 5 (16.7%) 3 (10%)
Motorcycle 6 (20%) 4 (13.3%)
Truck 5 (16–7%) 3 (10%)
Ambulance 4 (13.3%) 2 (6.7%)
Toys 6 (20%) 3 (10%)
Balloons 10 (33.3%) 5 (16.7%)
Whistle 8 (26.7%) 4 (13.3%)
Musical instruments 8 (26.7%) 4 (13.3%)
Bombs 13 (43.3%) 7 (23.3%)
Firecrackers 9 (30%) 6 (20%)
Thunders 10 (33.3%) 8 (26.7%)
Dogs 8 (26.7%) 4 (13.3%)