Table 1. Baseline demographics and characteristics after propensity score matching.
Cohort 1: COVID-19 and a ventricular shunt
Cohort 2: Ventricular shunt without COVID-19
| Before Matching | After Matching | ||||||
| Code | Diagnosis | Cohort 1, n (%) | Cohort 2, n (%) | Std diff. | Cohort 1, n (%) | Cohort 2, n (%) | Std diff. |
| AI | Age at Index | 39.39 (100) | 38.23 (100.00) | - | 38.54 (100.00) | 38.46 (100.00) | - |
| 2106-3 | White | 8328 (68.16) | 9900 (66.17) | 0.040 | 7223 (68.14) | 7256 (68.45) | 0.0066 |
| F | Female | 6241 (51.08) | 7642 (51.08) | 0.00 | 5406 (51.00) | 5374 (50.69) | 0.0060 |
| M | Male | 5974 (48.89) | 7317 (48.91) | 0.0002 | 5191 (48.97) | 5224 (49.28) | 0.0062 |
| 2054-5 | Black or African American | 2352 (19.25) | 2560 (17.111) | 0.056 | 1937 (18.27) | 1933 (18.24) | 0.00098 |
| 2131-1 | Unknown Race | 1323 (10.83) | 2205 (14.74) | 0.12 | 1244 (11.74) | 1223 (11.54) | 0.0062 |
| 2028-9 | Asian | 163 (1.33) | 221 (1.48) | 0.012 | 147 (1.39) | 139 (1.31) | 0.0065 |
| I10-I16 | Hypertensive diseases | 5005 (40.96) | 4247 (28.39) | 0.27 | 3790 (35.76) | 3869 (36.50) | 0.016 |
| R53 | Malaise and fatigue | 3927 (32.14) | 3092 (20.67) | 0.26 | 2846 (26.85) | 2903 (27.39) | 0.012 |
| E78 | Disorders of lipoprotein metabolism and other lipidemias | 3094 (25.32) | 2631 (17.59) | 0.19 | 2292 (21.62) | 2343 (22.10) | 0.012 |
| R63 | Symptoms and signs concerning food and fluid intake | 3024 (24.75) | 2225 (14.87) | 0.25 | 2182 (20.59) | 2176 (20.53) | 0.0014 |
| J40-J47 | Chronic lower respiratory diseases | 2723 (22.29) | 2261 (15.11) | 0.18 | 1996 (18.83) | 2045 (19.29) | 0.012 |
| R13 | Aphagia and dysphagia | 2850 (23.33) | 1947 (13.01) | 0.27 | 1952 (18.42) | 1898 (17.91) | 0.013 |
| R40 | Somnolence, stupor and coma | 2271 (18.59) | 1524 (10.19) | 0.24 | 1507 (14.22) | 1471 (13.88) | 0.0098 |
| E08-E13 | Diabetes mellitus | 1973 (16.15) | 1533 (10.25) | 0.18 | 1414 (13.34) | 1411 (13.31) | 0.00083 |
| N17-N19 | Acute kidney failure and chronic kidney disease | 2122 (17.37) | 1338 (8.94) | 0.25 | 1344 (12.68) | 1311 (12.37) | 0.0094 |
| Z87.891 | Personal history of nicotine dependence | 1672 (13.69) | 1407 (9.40) | 0.13 | 1240 (11.69) | 1244 (11.74) | 0.0012 |
| F17 | Nicotine dependence | 1470 (12.03) | 1286 (8.59) | 0.11 | 1118 (10.55) | 1097 (10.35) | 0.0065 |
| I20-I25 | Ischemic heart diseases | 1498 (12.26) | 1016 (6.79) | 0.19 | 1006 (9.49) | 975 (9.19) | 0.010 |
| I50 | Heart failure | 941 (7.70) | 572 (3.82) | 0.17 | 568 (5.36) | 556 (5.25) | 0.0051 |
| I48 | Atrial fibrillation and flutter | 760 (6.22) | 556 (3.72) | 0.12 | 526 (4.96) | 504 (4.76) | 0.0097 |
| I73 | Other peripheral vascular diseases | 502 (4.11) | 338 (2.26) | 0.11 | 321 (3.028) | 317 (2.99) | 0.0022 |
| F10.1 | Alcohol abuse | 344 (2.82) | 221 (1.48) | 0.092 | 216 (2.038) | 217 (2.05) | 0.00067 |
| F10.2 | Alcohol dependence | 218 (1.78) | 150 (1.00) | 0.067 | 140 (1.32) | 133 (1.26) | 0.0059 |
| K74 | Fibrosis and cirrhosis of liver | 158 (1.29) | 85 (0.57) | 0.076 | 90 (0.85) | 85 (0.80) | 0.0052 |