Mobile and cordless telephones, serum transthyretin and the blood-cerebrospinal fluid barrier: a cross-sectional study

Table 2 Descriptive data for serum transthyretin (g/L)

	n	Mean	Median	Min	Max	p
Transthyretin, total	313	0.277	0.270	0.170	0.480	-
Age (cut-point at median)
≤ 47 years	158	0.271	0.260	0.170	0.480	0.02
> 47 years	155	0.284	0.280	0.180	0.470
Gender
Men	133	0.307	0.300	0.180	0.480	<0.0001
Women	180	0.256	0.250	0.170	0.400
Time (hour) when blood was drawn
06:00–12:00	65	0.286	0.270	0.170	0.420	0.12
12:01–16:00	248	0.275	0.270	0.170	0.480
Day when blood was drawn
Mon-Thur	174	0.276	0.260	0.170	0.440	0.77
Fri-Sun	139	0.279	0.270	0.170	0.480
Month when blood was drawn
March-June	228	0.278	0.270	0.170	0.480	0.94
July-October	85	0.277	0.270	0.170	0.400

ISSN: 1476-069X