Table 6 Comparison of measured VAS scores and retrospective VAS scores at cooling temperatures of 5 °C and 10 °C

5 °C

VAS score (average)

24-h group (average, 24 h) n = 15

16-h group (average, 18 h) n = 13

With blocks

Without blocks

With blocks

Without blocks

1.3 ± 2.0

4.6 ± 2.9

2.2 ± 3.0

4.3 ± 2.5

Retrospective VAS score

24-h group n = 15

p

16-h group n = 13

p

With blocks

Without blocks

With blocks

Without blocks

2.5 ± 2.5

7.1 ± 1.5

0.005*

4.6 ± 4.0

5.5 ± 3.1

0.653

10 °C

VAS score (average)

24-h group (average, 24 h) n = 9

16-h group (average, 18 h) n = 13

With blocks

Without blocks

With blocks

Without blocks

2.2 ± 2.7

3.7 ± 2.3

2.1 ± 2.5

3.2 ± 3.5

Retrospective VAS score

24-h group n = 9

p

16-h group n = 13

p

With blocks

Without blocks

With blocks

Without blocks

4.5 ± 3.2

4.3 ± 3.8

0.95

6.1 ± 2.8

2.6 ± 4.2

0.147