| Male, n (%) |
703 (53.9) |
15 (57.7) |
688 (53.8) |
0.848 |
| Female, n (%) |
601 (46.1) |
11 (42.3) |
590 (46.2) |
0.848 |
| Median Age (IQR) |
63.00 [48.00, 73.00] |
73.00 [62.00, 79.71] |
63.00 [48.00, 73.00] |
0.008 |
| Not Reported Dead, n (%) |
915 (70.2) |
20 (76.9) |
895 (70.0) |
0.587 |
| Reported Dead, n (%) |
389 (29.8) |
6 (23.1) |
383 (30.0) |
0.587 |
| Other Insurance, n (%) |
933 (71.5) |
20 (76.9) |
913 (71.4) |
0.694 |
| Medicaid/Safety Net, n (%) |
371 (28.5) |
6 (23.1) |
365 (28.6) |
0.694 |
| Mass General Hospital, n (%) |
706 (54.1) |
21 (80.8) |
685 (53.6) |
0.011 |
| Brigham and Women's Hospital, n (%) |
598 (45.9) |
5 (19.2) |
593 (46.4) |
0.011 |
| Neurology, n (%) |
584 (44.8) |
10 (38.5) |
574 (44.9) |
0.146 |
| Medicine/Subspecialties, n (%) |
456 (35.0) |
14 (53.8) |
442 (34.6) |
0.146 |
| Oncology, n (%) |
178 (13.7) |
2 (7.7) |
176 (13.8) |
0.146 |
| Other, n (%) |
86 (6.6) |
0 (0.0) |
86 (6.7) |
0.146 |
| Immunocompetent, n (%) |
1133 (86.9) |
25 (96.2) |
1108 (86.7) |
0.262 |
| Immunosuppressed, n (%) |
171 (13.1) |
1 (3.8) |
170 (13.3) |
0.262 |
| No Transplant, n (%) |
1160 (89.0) |
25 (96.2) |
1135 (88.8) |
0.386 |
| History of Transplant, n (%) |
144 (11.0) |
1 (3.8) |
143 (11.2) |
0.386 |
| No B-cell Depleting Meds, n (%) |
1271 (97.5) |
26 (100.0) |
1245 (97.4) |
0.842 |
| B-cell Depletion, n (%) |
33 (2.5) |
0 (0.0) |
33 (2.6) |
0.842 |
| Test Sent Off-Season, n (%) |
479 (36.7) |
0 (0.0) |
479 (37.5) |
<0.001 |
| Test Sent June-Nov, n (%) |
825 (63.3) |
26 (100.0) |
799 (62.5) |
<0.001 |
| Serum WBC (IQR) |
8.17 [5.68, 11.40] |
9.04 [7.88, 11.23] |
8.13 [5.65, 11.40] |
0.128 |
| CSF Protein (IQR) |
47.50 [31.70, 78.05] |
69.50 [54.00, 113.25] |
47.00 [31.20, 77.80] |
0.001 |
| CSF TP < 60, n (%) |
834 (64.0) |
8 (30.8) |
826 (64.7) |
0.001 |
| CSF TP > 60, n (%) |
469 (36.0) |
18 (69.2) |
451 (35.3) |
0.001 |
| CSF Glucose (IQR) |
68.00 [58.00, 85.00] |
60.50 [53.25, 70.00] |
68.00 [58.00, 85.00] |
0.025 |
| CSF Total Nucleated Cell Count (IQR) |
3.00 [1.00, 21.00] |
49.50 [12.25, 99.50] |
3.00 [1.00, 18.00] |
<0.001 |
| CSF TNC < 5, n (%) |
769 (59.0) |
4 (15.4) |
765 (59.9) |
<0.001 |
| CSF TNC ≥ 5, n (%) |
535 (41.0) |
22 (84.6) |
513 (40.1) |
<0.001 |
| CSF Lymphocyte Count (IQR) |
66.00 [25.00, 86.00] |
56.50 [26.25, 75.25] |
66.00 [25.00, 86.75] |
0.598 |
| Normal CSF Cell Count (CSF TNC < 5), n (%) |
769 (59.0) |
4 (15.4) |
765 (59.9) |
<0.001 |
| Pleocytosis (Lymph > 50%), n (%) |
350 (26.8) |
12 (46.2) |
338 (26.4) |
<0.001 |
| Pleocytosis (Lymph < 50%), n (%) |
185 (14.2) |
10 (38.5) |
175 (13.7) |
<0.001 |