Table 1.
Characteristic | n | 25th | 50th | 75th | P value* |
---|---|---|---|---|---|
Age |
|
|
|
|
|
0-5 |
1521 |
0.11 |
0.49 |
1.97 |
<0.0001 |
6-10 |
2545 |
0.12 |
0.38 |
1.31 |
|
11-15 |
4978 |
0.32 |
0.96 |
2.52 |
|
Sex |
|
|
|
|
|
Male |
5323 |
0.17 |
0.62 |
2.08 |
<0.0001 |
Female |
3721 |
0.23 |
0.73 |
2.18 |
|
Severity |
|
|
|
|
|
Fatal |
36 |
0.21 |
0.57 |
4.12 |
0.7915 |
Serious |
1714 |
0.18 |
0.60 |
2.23 |
|
Slight |
7294 |
0.20 |
0.68 |
2.11 |
|
IMD of home residence |
|
|
|
|
|
(least deprived) 1 |
443 |
0.34 |
1.01 |
2.45 |
<0.0001 |
2 |
542 |
0.24 |
0.73 |
2.28 |
|
3 |
537 |
0.25 |
0.82 |
2.12 |
|
4 |
677 |
0.22 |
0.64 |
1.89 |
|
5 |
731 |
0.21 |
0.73 |
2.33 |
|
6 |
963 |
0.19 |
0.68 |
2.17 |
|
7 |
1030 |
0.17 |
0.57 |
1.84 |
|
8 |
1197 |
0.18 |
0.59 |
1.84 |
|
9 |
1352 |
0.18 |
0.58 |
1.78 |
|
(most deprived) 10 |
1382 |
0.16 |
0.49 |
1.80 |
|
Ethnic group |
|
|
|
|
|
White |
4140 |
0.20 |
0.67 |
2.04 |
<0.0001 |
Black |
2378 |
0.23 |
0.71 |
2.45 |
|
Asian |
1029 |
0.13 |
0.48 |
1.69 |
|
Year |
|
|
|
|
|
2000 |
1072 |
0.16 |
0.58 |
1.98 |
<0.0001 |
2001 |
1131 |
0.17 |
0.61 |
2.07 |
|
2002 |
938 |
0.18 |
0.54 |
1.74 |
|
2003 |
900 |
0.17 |
0.57 |
2.13 |
|
2004 |
898 |
0.19 |
0.64 |
1.78 |
|
2005 |
924 |
0.23 |
0.71 |
2.38 |
|
2006 |
833 |
0.23 |
0.86 |
2.46 |
|
2007 |
831 |
0.23 |
0.73 |
2.24 |
|
2008 |
765 |
0.22 |
0.76 |
2.47 |
|
2009 |
752 |
0.22 |
0.80 |
2.29 |
|
Day of week |
|
|
|
|
|
Sunday |
761 |
0.14 |
0.69 |
2.94 |
0.3077 |
Monday |
1337 |
0.21 |
0.68 |
2.01 |
|
Tuesday |
1412 |
0.19 |
0.68 |
2.10 |
|
Wednesday |
1536 |
0.20 |
0.65 |
1.96 |
|
Thursday |
1432 |
0.21 |
0.62 |
1.93 |
|
Friday |
1510 |
0.21 |
0.68 |
1.97 |
|
Saturday |
1056 |
0.18 |
0.71 |
2.83 |
|
Time of day (weekdays only) |
|
|
|
|
|
10pm - 7am |
122 |
0.34 |
1.00 |
2.60 |
<0.0001 |
7am-9am |
1277 |
0.25 |
0.64 |
1.78 |
|
9am-3pm |
1209 |
0.22 |
0.73 |
2.36 |
|
3pm-6pm |
3257 |
0.23 |
0.73 |
2.08 |
|
6pm-10pm | 1362 | 0.13 | 0.45 | 1.56 |
*P value of ANOVA F-test.