Table 2.

Descriptive socio-economic data.

	West N = 105	East N = 102	p-value
Age years*	43.1 (6.1)	43.4 (6.4)	.693
Sex (M/F)**	47/58	49/53	.636
Years living in the municipality*	35.4 (17.4)	28.2 (16.4)	.002
Years using same water supply *	19.3 (11.9)	21.0 (12.3)	.318
Educational level%**			.004
Grammar school	44	42.7
Upper secondary school	41	24.0
University degree	15	33.3

* Mean (sd), Student's T-test ** Chi-square test