Nursing activity

Average sound level generated from each activity

Significant difference

Condition 1 (Sound and time unaware)

Condition 2 (Time aware)

Condition 3 (Sound and time aware)

Condition 1 vs. 2

Condition 2 vs. 3

(1) Wagon

49.0

51.4

50.1

n.s.

p = 0.0002

(2) Tray

54.0

58.1

52.8

n.s.

p = 0.0014

(3) Bowl

58.3

60.5

56.0

n.s.

p = 0.0002

(4) Sink

51.4

54.1

51.7

n.s.

p = 0.0003

(5) Microwave oven

62.5

64.9

61.0

n.s.

p = 0.0005

(6) Bed guards

55.0

56.6

53.3

n.s.

n.s.

(7) Typing

46.1

47.1

46.1

n.s.

n.s.

(8) Filing

48.0

50.0

48.0

n.s.

n.s.