|
Parameter
|
Unit
|
Total population
|
Control group
|
SSI
|
p value
|
|---|
|
Number total
|
pts
|
274 (100%)
|
252 (91.97%)
|
22 (8.03%)
| |
|
2005
|
pts
|
37 (13.50%)
|
33 (13.10%)
|
4 (18.18%)
| |
|
2006
|
pts
|
46 (16.79%)
|
41 (16.27%)
|
5 (22.73%)
| |
|
2007
|
pts
|
34 (12.41%)
|
30 (11.90%)
|
4 (18.18%)
|
0.746
|
|
2008
|
pts
|
47 (47.15%)
|
44 (17.46%)
|
3 (13.64%)
| |
|
2009
|
pts
|
57 (20.80%)
|
54 (21.43%)
|
3 (13.64%)
| |
|
2010
|
pts
|
53 (19.34%)
|
50 (19.84%)
|
3 (13.64%)
| |
|
January
|
pts
|
31 (11.31%)
|
29 (11.51%)
|
2 (9.09%)
| |
|
February
|
pts
|
18 (6.57%)
|
15 (5.95%)
|
3 (13.64%)
| |
|
March
|
pts
|
36 (13.14%)
|
35 (13.89%)
|
1 (4.55%)
| |
|
April
|
pts
|
25 (9.12%)
|
23 (9.13%)
|
2 (9.09%)
| |
|
May
|
pts
|
20 (7.30%)
|
19 (7.54%)
|
1 (4.55%)
| |
|
June
|
pts
|
22 (8.03%)
|
20 (7.94%)
|
2 (9.09%)
| |
|
July
|
pts
|
15 (5.47%)
|
12 (4.76%)
|
3 (13.64%)
| |
|
August
|
pts
|
27 (9.85%)
|
23 (9.13%)
|
4 (18.18%)
| |
|
September
|
pts
|
22 (8.03%)
|
21 (8.33%)
|
1 (4.55%)
| |
|
October
|
pts
|
27 (9.85%)
|
25 (9.92%)
|
2 (9.09%)
| |
|
November
|
pts
|
21 (7.66%)
|
20 (7.94%)
|
1 (4.55%)
| |
|
December
|
pts
|
10 (3.65%)
|
10 (3.97%)
|
0 (0.00%)
| |
|
Cold season
|
pts
|
210 (76.64%)
|
197 (78.17%)
|
13 (59.09%)
| |
|
Warm season
|
pts
|
64 (23.36%)
|
55 (21.83%)
|
9 (40.91%)
|
0.042
|
|
Age
|
pts
| |
54.06±12.89
|
56.59±13.18
|
0.374
|
|
Male
|
pts
|
145 (52.92%)
|
132 (52.38%)
|
13 (59.09%)
|
0.545
|
|
Weight
|
kg
| |
80.72±14.94
|
79.36±15.05
|
0.668
|
|
BMI
| | |
27.48±4.00
|
27.69±4.17
|
0.878
|
|
NICU stay
|
day
| |
1.61±1.10
|
1.32±1.51
|
0.043
|
|
Hospital stay
|
day
| |
8.65±5.92
|
11.55±6.35
|
0.094
|
|
Spine diagnoses
|
|
Degenerative
|
pts
|
247 (90.15%)
|
227 (90.08%)
|
20 (90.91%)
| |
|
Tumour
|
pts
|
21 (7.66%)
|
19 (7.54%)
|
2 (9.09%)
|
0.745
|
|
Trauma
|
pts
|
6 (2.19%)
|
6 (2.19%)
|
0 (0.00%)
| |
|
Diabetes mellitus
|
pts
|
33 (12.04%)
|
30 (11.90%)
|
3 (13.64%)
|
0.811
|
|
Ulcer prophylaxis
|
pts
|
56 (20.44%)
|
53 (21.03%)
|
3 (13.64%)
|
0.409
|
|
Omeprazole
|
pts
|
50 (18.25%)
|
47 (18.65%)
|
3 (13.64%)
|
0.559
|
- BMI body mass index, NICU neurointensive care unit. Warm season—June to August; cold season—January to May, September to December
