Table 3 Patients undergoing gastrointestinal surgery differentiated by sex, age, type of surgery, blood transfusion with filtered or non-filtered red blood cells, and duration of surgery according to survival

Survived
 Died{dagger}

Total* (n=560)
 Non-filtered (n=284)
 Filtered (n=276)
 Non-filtered (n=23)
 Filtered (n=11)
Sex:





Male
318
167
151
12
9
Female
242
117
125
11
2
Age (years):





<60
174
88
86
5
2
60-70
179
90
89
5
5
>70
207
106
101
13
4
Units of red blood cells transfused:




0
303
147
156
5
3
1-3
137
75
62
6
1
4-10
90
44
46
7
3
>10
30
18
12
5
4
Duration of surgery (mins):





<120
172
81
91
6
3
120-179
162
87
75
9
2
180-239
115
59
56
3
2
240-359
76
37
39
4
4
>=360
35
20
15
1
0
Type of surgery:





Upper GI surgery{ddagger}
 131
60
71
6
5
Laparotomy
26
16
10
2
1
Colectomy
118
64
54
5
1
Rectal (sigmoid) resections
285
144
141
10
4

* Equal distributions.

{dagger} Unequal distributions between non-filtered and filtered products.

{ddagger} Includes resections of oesophagus, gastrectomy, liver surgery, jejunectomy, pancreatico-duodenectomy.