Table 1.
Characteristics of 21,019 patients ≥ 60 years by BMI classification
| Patient characteristics | Overall n = 21019 | <18.5 n = 220 | 18.5–24.9 n = 4909 | 25.0–29.9 n = 7874 | 30.0–34.9 n = 4948 | 35.0–35.9 n = 1988 | ≥40.0 n = 1080 | P-value |
|---|---|---|---|---|---|---|---|---|
| Age (mean, SD) | 72.03, 8.88 | 78.1, 9.59 | 73.8, 9.73 | 72.5, 8.80 | 71, 8.26 | 69.6, 7.56 | 68.4, 7.08 | <0.001a |
| Sex, female, n (%) | 11664 (55) | 192 (87) | 3401 (69) | 3904 (50) | 2374 (48) | 1121 (56) | 672 (62) | <0.001b |
| Race, white, n (%) | 19826 (94) | 209 (95) | 4545 (93) | 7438 (94) | 4707 (95) | 1889 (95) | 1038 (96) | <0.001b |
| Marital status, single, n (%) | 6240 (30) | 111 (50) | 1691 (34) | 2161 (27) | 1350 (27) | 593 (30) | 334 (31) | <0.001b |
| Charlson score (mean, SD) | 2.05, 2.57 | 2.71, 2.96 | 1.95, 2.61 | 1.94, 2.51 | 2.09, 2.54 | 2.31, 2.61 | 2.55, 2.63 | <0.001a |
| Outcomes | ||||||||
| Hospitalization, n (%) | 3480 (17) | 68 (31) | 871 (18) | 1165 (15) | 793 (16) | 375 (19) | 208 (19) | <0.001b |
| ER visit, n (%) | 4898 (23) | 90 (41) | 1209 (25) | 1692 (21) | 1122 (23) | 507 (26) | 278 (26) | <0.001b |
| Mortality, n (%) | 544 (3) | 28 (13) | 200 (4) | 171 (2) | 101 (2) | 29 (1) | 15 (1) | <0.001b |
Notes:
a
Test for comparison: ANOVA;
b
Pearson Chi square test.
Abbreviations: BMI, body mass index; ER, emergency room; SD, standard deviation.