Table 1.
Determination of sample size, 2018
| Hospital/Strata | Inpatients, n | Prevalence of patients with NGT/NET | Estimated size of each stratum |
| HCA | 980 | 0.1908 | 58 |
| HGF | 192 | 0.1563 | 11 |
| HCFMRP-USP | 2247 | 0.0788 | 134 |
| HEAB | 783 | 0.1073 | 47 |
| HES | 1991 | 0.1828 | 119 |
| HSVP | 323 | 0.0650 | 19 |
| HSCRGS | 48 | 0.0324 | 3 |
HCA, Acre Hospital of Clinics; HCFMRP-US, Hospital of Clinics of the Medical School of Ribeirão Preto of the University of São Paulo; HEAB, Américo Brasiliense State Hospital; HES, Sumaré State Hospital; HGF, General Hospital of Fortaleza; HSCRGS, Santa Cruz Hospital; HSVP, São Vicente de Paulo Hospital; NGT/NET, nasogastric/nasoenteric tube.