Table 1.b. Frailty (VACS Index) during follow-up (N = 1,066,289)
| Characteristic |
Severe infection after age 65 years
|
| no, N = 836,916 |
yes, N = 229,373 |
| VACS Index (yr 1) |
|
|
| Mean (SD) |
50 (12) |
60 (16) |
| Median (IQR) |
48 (42, 56) |
58 (48, 70) |
| Range |
19 - 127 |
20 - 129 |
| Missingness |
|
|
| Available |
709,562 (85%) |
216,618 (94%) |
| Censored |
2 (<0.1%) |
0 (0%) |
| Missing |
127,352 (15%) |
12,755 (5.6%) |
| VACS Index (yr 2) |
|
|
| Mean (SD) |
50 (11) |
57 (14) |
| Median (IQR) |
49 (42, 57) |
55 (47, 65) |
| Range |
20 - 124 |
21 - 125 |
| Missingness |
|
|
| Available |
576,204 (69%) |
142,900 (62%) |
| Censored |
89,846 (11%) |
55,416 (24%) |
| Missing |
170,866 (20%) |
31,057 (14%) |
| VACS Index (yr 3) |
|
|
| Mean (SD) |
51 (11) |
57 (14) |
| Median (IQR) |
49 (43, 57) |
55 (47, 65) |
| Range |
23 - 122 |
24 - 128 |
| Missingness |
|
|
| Available |
462,775 (55%) |
107,981 (47%) |
| Censored |
215,551 (26%) |
93,828 (41%) |
| Missing |
158,590 (19%) |
27,564 (12%) |
| VACS Index (yr 4) |
|
|
| Mean (SD) |
52 (11) |
57 (13) |
| Median (IQR) |
50 (44, 58) |
55 (47, 64) |
| Range |
23 - 127 |
23 - 129 |
| Missingness |
|
|
| Available |
371,254 (44%) |
83,418 (36%) |
| Censored |
331,170 (40%) |
124,240 (54%) |
| Missing |
134,492 (16%) |
21,715 (9.5%) |
| VACS Index (yr 5) |
|
|
| Mean (SD) |
52 (11) |
57 (13) |
| Median (IQR) |
51 (45, 58) |
55 (48, 64) |
| Range |
23 - 123 |
25 - 124 |
| Missingness |
|
|
| Available |
291,357 (35%) |
63,267 (28%) |
| Censored |
433,757 (52%) |
148,518 (65%) |
| Missing |
111,802 (13%) |
17,588 (7.7%) |