Table 1.
Description of the sample, by prison (N = 141 cells)*
| Cell characteristic† | EPC (N = 32) | PTL (N = 85) | UPRB (N = 24) | P value‡ |
|---|---|---|---|---|
| Individuals per cell | 13.2 ± 5.9 | 5.8 ± 2.7 | 11.7 ± 6.0 | < 0.001 |
| Beds per cell | 6.4 ± 4.1 | 2.9 ± 1.5 | 5.7 ± 1.7 | < 0.001 |
| Absolute ventilation (L/s) | 119.1 ± 54.0 | 128.7 ± 74.4 | 202.3 ± 217.5 | 0.008 |
| ACH | 12.6 ± 4.6 | 15.0 ± 12.5 | 21.8 ± 26.7 | 0.066 |
| Steady-state CO2 (ppm) | 989 ± 204 | 652 ± 159 | 775 ± 158 | < 0.001 |
| Floor area (m2) | 13.1 ± 6.9 | 13.3 ± 4.7 | 13.0 ± 3.6 | 0.959 |
| Ceiling height (m) | 2.9 ± 0.2 | 3.2 ± 0.2 | 2.9 ± 0.2 | < 0.001 |
| Opening area (m2)§ | 4.3 ± 0.8 | 2.8 ± 0.3 | 5.1 ± 3.9 | < 0.001 |
| Openings facing prevailing winds, n (%)∥ | 14 (43.8) | 40 (50.0) | 8 (33.3) | 0.346 |
| Interior concrete walls | 2.5 ± 1.1 | 2.3 ± 1.0 | 2.0 ± 0.5 | 0.144 |
| Portable fans | 7.5 ± 8.0 | 2.6 ± 1.5 | 5.7 ± 2.8 | < 0.001 |
| Cells per courtyard | 3.8 ± 1.4 | 19.4 ± 6.1 | 4.6 ± 1.7 | < 0.001 |
| Courtyard area (m2) | 55.0 ± 17.1 | 316.3 ± 94.7 | 54.0 ± 15.9 | < 0.001 |
| Recreational time (hours) | 7.2 ± 4.5 | 4.0 ± 2.4 | 9.3 ± 1.0 | < 0.001 |
ACH = air changes per hour; EPC = Estabelecimento Penal de Corumbá; PTL = Penitenciária de Três Lagoas; SD = standard devaition; UPRB = Unidade Penal Ricardo Brandão.
*
A total of 1,047 inmates in 141 cells.
†
Table values are mean ± SD for continuous variables and n (column %) for categorical variables.
‡
P value is for t test (continuous variables) or χ2 test (categorical variables).
§
Area of open windows and/or doors.
∥
Windows and/or doors facing prevailing winds during winter.