Table 3.
Number of cases and controls, and associations for surgery by body system group at discharge, for specific periods adjacent to onset or ID-2
| Unexposed | Exposed* | Surgery targeted by study | |||
|---|---|---|---|---|---|
| Time window |
Body-system group |
Subject |
No. (%) |
No. (%) |
OR (95% CI) |
| Time window 4 |
Eye and adjacent |
Case |
166 (99.4) |
1 (0.6) |
|
| |
structures |
MC |
833 (99.8) |
2 (0.2) |
2.50 (0.23–27.57) |
| |
|
UMC |
2,217 (99.7) |
7 (0.3) |
1.77 (0.09–10.51) |
| |
Heart and major |
Case |
165 (98.8) |
2 (1.2) |
|
| |
thoracic vessels |
MC |
830 (99.4) |
5 (0.6) |
2.00 (0.39–10.31) |
| |
|
UMC |
2,220 (99.8) |
4 (0.2) |
5.75 (0.76–31.47) |
| |
Digestive system |
Case |
161 (96.4) |
6 (3.6) |
|
| |
and spleen |
MC |
824 (98.7) |
11 (1.3) |
2.73 (1.01–7.37) |
| |
|
UMC |
2,191 (98.5) |
33 (1.5) |
2.22 (0.81–5.12) |
| |
Urinary system, |
Case |
164 (98.2) |
3 (1.8) |
|
| |
male genital organs |
MC |
831 (99.5) |
4 (0.5) |
3.75 (0.84–16.76) |
| |
and other surgery |
UMC |
2,210 (99.4) |
14 (0.6) |
1.96 (0.44–6.31) |
| |
Female genital |
Case |
87(97.8) |
2 (2.2) |
|
| |
organs |
MC |
441 (99.1) |
4 (0.9) |
2.50 (0.46–13.65) |
| |
|
UMC |
1,136 (99.0) |
12 (1.0) |
1.92 (0.29–7.51) |
| |
Transluminal |
Case |
161 (96.4) |
6 (3.6) |
|
| |
endoscopies |
MC |
826 (98.9) |
9 (1.1) |
3.51 (1.21–10.19) |
| |
|
UMC |
2,199 (98.9) |
25 (1.1) |
2.57 (0.93–6.08) |
| |
Minor surgical |
Case |
160 (95.8) |
7 (4.2) |
|
| |
procedures |
MC |
833 (99.8) |
2 (0.2) |
17.50 (3.64–84.24) |
| |
|
UMC |
2,217 (99.7) |
7 (0.3) |
16.52 (5.34–51.15) |
| Time window 5 |
Nervous system |
Case |
165 (98.8) |
2 (1.2) |
|
| |
|
MC |
835 (100.0) |
0 (0.0) |
– |
| |
|
UMC |
2,222 (99.9) |
2 (0.1) |
19.40 (2.22–168.34) |
| |
Digestive system |
Case |
161 (96.4) |
6 (3.6) |
|
| |
and spleen |
MC |
830 (99.4) |
5 (0.6) |
6.00 (1.83–19.66) |
| |
|
UMC |
2,211 (99.4) |
13 (0.6) |
6.01 (2.03–15.94) |
| |
Musculoskeletal |
Case |
165 (98.8) |
2 (1.2) |
|
| |
system |
MC |
826 (98.9) |
9 (1.1) |
1.12 (0.23–5.33) |
| |
|
UMC |
2,205 (99.1) |
19 (0.9) |
1.21 (0.19–4.32) |
| |
Skin |
Case |
166 (99.4) |
1 (0.6) |
|
| |
|
MC |
833 (99.8) |
2 (0.2) |
2.50 (0.23–27.57) |
| |
|
UMC |
2,223(100.0) |
1 (0.0) |
24.31 (0.95–622.5) |
| |
Transluminal |
Case |
164 (98.2) |
3 (1.8) |
|
| |
endoscopies |
MC |
828 (99.2) |
7 (0.8) |
2.14 (0.55–8.29) |
| |
|
UMC |
2,215 (99.6) |
9 (0.4) |
3.81 (0.82–13.32) |
| |
Minor surgical |
Case |
149 (89.2) |
18 (10.8) |
|
| |
procedures |
MC |
834 (99.9) |
1 (0.1) |
90.0 (12.01–674.2) |
| UMC | 2,222 (99.9) | 2 (0.1) | 165.1 (44.84–1,070) |
M. Matched control; UMC. Unmatched control.
*ORs for comparisons with unmatched controls were adjusted for age, sex and country.
At least one registered procedure.
Only categories with exposed cases are shown.