Table 2.
Characteristics of hospitalizations stratified by body mass index (BMI) categories.
| BMI category | Total | Underweight | Normal weight | Overweight | Obesity class I | Obesity class II | Obesity class III | |
|---|---|---|---|---|---|---|---|---|
| EpiDoC 12,011–2013 | (n = 10,102) | (n = 166) | (n = 4,069) | (n = 3,798) | (n = 1,542) | (n = 403) | (n = 124) | p-value |
| Hospitalization (yes) | 862 (8.5%) | 7 (4.2%) | 308 (7.6%) | 319 (8.4%) | 172 (11.2%) | 43 (10.7%) | 13 (10.5%) | <0.001a |
| Length of stay (days) (mean ± sd) | – | – | – | – | – | – | ||
| EpiDoC 22,013–2015 | (n = 6,905) | (n = 111) | (n = 2,666) | (n = 2,779) | (n = 1,017) | (n = 250) | (n = 82) | p-value |
| Hospitalization (yes) | 590 (8.5%) | 8 (7.2%) | 172 (6.5) | 259 (9.3%) | 109 (10.7%) | 28 (11.2%) | 14 (17.1%) | <0.001a |
| Length of stay (days) (mean ± sd) | 9.3 ± 17.4 | 5.3 ± 3.1 | 9.8 ± 15.0 | 9.0 ± 19.4 | 10.5 ± 19.8 | 6.1 ± 6.1 | 8.2 ± 8.2 | 0.05b |
| EpiDoC 32,015–2016 | (n = 5,159) | (n = 88) | (n = 2003) | (n = 2091) | (n = 745) | (n = 181) | (n = 51) | p-value |
| Hospitalization (yes) | 683 (13.2%) | 234 (11.2%) | 225 (11.2%) | 278 (13.3%) | 123 (16.5%) | 37 (20.4%) | 11 (21.6%) | 0.149a |
| Length of stay (days) (mean ± sd) | 8.5 ± 16.3 | 11.6 ± 20.4 | 8.3 ± 14.5 | 7.9 ± 15.0 | 7.7 ± 18.7 | 15.5 ± 23.0 | 10 ± 13.5 | 0.21b |
| EpiDoC 42,021 | (n = 3,415) | (n = 39) | (n = 1,241) | (n = 1,384) | (n = 567) | (n = 143) | (n = 41) | p-value |
| Hospitalization (yes) | 332 (9.7%) | 4 (10.3%) | 111 (8.9%) | 123 (8.9%) | 71 (12.5%) | 18 (12.6%) | 5 (12.2%) | 0.472a |
| Length of stay (days) (mean ± sd) | 6.2 ± 11.2 | 6.5 ± 8.5 | 5.5 ± 5.5 | 6.1 ± 10.0 | 7.4 ± 15.3 | 5.3 ± 4.9 | 8.2 ± 5.1 | 0.41b |
aChi-square test. bKruskal Wallis test. Information on length of stay was not collected at EpiDoC 1.