Table 2.
Continuous (A) and discrete (B) variables included in the meta-analysis. Continuous variables show the average value and standard deviation in parenthesis
| (A) | Continuous variables | Mean (± SD) |
| THI | 71.8 (± 10.4) | |
| DMI (kg/d) | 15.5 (± 6.17) | |
| Rectal temperature (°C) | 39.0 (± 0.8) | |
| Vaginal temperature (°C) | 38.96 (± 0.7) | |
| Respiratory rate (breaths/min) | 60.4 (± 16.9) | |
| (B) | Discrete variables | Levels |
| Country | Australia, Brazil, Canada, China, Germany, Ghana, India, Iran, Israel, Italy, Japan, South Africa, Thailand, Tunisia, USA | |
| Breed | Angus, Bonsmara, Charolais, Holstein–Friesian, Shorthorn, Vrindavan | |
| Parity | Primiparous, multiparous | |
| Lactation status | Lactating, non-lactating | |
| Stage of lactation | Early, mid and dry | |
| Cooling strategies | Passive, active, none |