TABLE 3.

Pain Matcher^* threshold values in male (n=29) and female (n=40) subjects exposed to the aquarium

	Delay	Sex	Mean ± SD	t test	P
First noticeable sensation	Before exposure	M	4.17±1.31	0.63	0.53
		F	4.00±0.96
	5 min	M	4.28±1.33	1.55	0.13
		F	3.85±0.95
	10 min	M	4.24±1.50	1.20	0.24
		F	3.88±1.04
	20 min	M	4.24±1.09	1.26	0.21
		F	3.90±1.13
	30 min	M	4.38±1.18	0.90	0.37
		F	4.10±1.34
	10 min after the end of exposure	M	4.34±1.14	0.77	0.44
		F	4.10±1.41
Pain threshold	Before exposure	M	22.28±13.29	4.61	<0.0001
		F	11.50±5.60
	5 min	M	27.28±16.94	4.31	<0.0001
		F	14.15±7.85
	10 min	M	31.69±21.71	4.36	<0.0001
		F	15.25±8.48
	20 min	M	28.59±18.65	3.33	0.001
		F	17.03±9.96
	30 min	M	34.83±22.96	4.03	<0.0001
		F	18.23±10.59
	10 min after the end of exposure	M	34.48±26.11	3.62	0.001
		F	17.40±12.36

^*Cefar Medical AB, Sweden. F Female; M Male