Table 2: Pre-intervention physiological and behavioural characteristics [median (IQR)] for both the ASMR and control groups.

Variables

ASMR n = 25

Control n = 25

p-value

Physiological

HR (beats per minute)

64 (20)

63 (15)

0.54

Systolic BP (mmHg)

123 (12)

123 (16)

0.85

Diastolic BP (mmHg)

74 (7)

78 (8)

0.10

RR (breaths per minute)

19 (4)

20 (7)

0.23

SpO2 (%)

98 (2)

98 (3)

0.34

Temperature (℃)

36.7 (0.3)

36.6 (0.3)

0.36

Behavioural

STAI-T

30 (16)

32 (14)

0.68

STAI-S

33 (13)

31 (16)

0.85

VAAS

21 (33)

27 (34)

0.98

APAIS

13 (3)

14 (5)

0.88

ASMR: Autonomous Sensory Meridian Response; HR: Heart Rate; BP: Blood Pressure; RR: Respiratory Rate; SpO2: Haemoglobin Saturation with Oxygen; STAI-T: Trait Anxiety; STAI-S: State Anxiety; IQR: Interquartile Range; VAAS: Visual Analogue Scale; APAIS: Amsterdam Pre-operative Anxiety and Information Scale.