Table 1

Age and ln urea for 20 patients attending an accident and emergency unit
Subject
 Age (years)
 ln urea
1
 60
 1.099
2
 76
 1.723
3
 81
 2.054
4
 89
 2.262
5
 44
 1.686
6
 58
 1.988
7
 55
 1.131
8
 74
 1.917
9
 45
 1.548
10
 67
 1.386
11
 72
 2.617
12
 91
 2.701
13
 76
 2.054
14
 39
 1.526
15
 71
 2.002
16
 56
 1.526
17
 77
 1.825
18
 37
 1.435
19
 64
 2.460
20
 84
 1.932

Bewick et al. Critical Care 2003 7:451   doi:10.1186/cc2401