Table 1.
Sex differences in laboratory rat (Rattus norvegicus). Longevity in months.
| Study | Strain/Type | Male longevity* |
Female longevity* |
M/F | Male DR longevity* |
Female DR Longevity* |
DR M/F | Male DR Effect Size (%) |
Female DR Effect Size (%) |
|---|---|---|---|---|---|---|---|---|---|
| McCay et al., 1935 | “white” | 16.1 | 26.7 | 0.60 | 27.3 | 25.8 | 1.06 | 70 | −3 |
| McCay et al., 1935 | “white” | 16.1 | 26.7 | 0.60 | 29.8 | 27.5 | 1.08 | 85 | 3 |
| Carlson & Hoelzel, 1946 | Wistar | 20.4 | 22.9 | 0.89 | 22.8 | 24.4 | 0.93 | 12 | 7 |
| Gilbert, et al., 1958 | Wistar | 24.7 | 23.1 | 1.07 | 28.1 | 30.0 | 0.94 | 14 | 30 |
| Berg & Simms, 1961 | Sprague- Dawley |
25.0 | 30.3 | 0.83 | 33.3 | >40.0 | <0.83 | 33 | >33 |
| Nolan, et al., 1972 | Albino | 23.5 | 25.2 | 0.93 | 30.8 | 29.1 | 1.06 | 32 | 15 |
| Sprott & Austad, 1996 | F344 | 24.0 | 27.5 | 0.87 | 29.2 | 30.7 | 0.95 | 22 | 12 |
|
Sprott & Austad, 1996 (diet 2) |
F344 | 23.3 | 26.3 | 0.89 | 29.7 | 30.2 | 0.98 | 27 | 15 |
| Sprott & Austad, 1996 | BN | 28.8 | 30.3 | 0.95 | 33.1 | 37.5 | 0.88 | 15 | 24 |
| Sprott & Austad, 1996 | F344BNF1 | 31.0 | 32.3 | 0.96 | 40.6 | 43.3 | 0.94 | 31 | 34 |
*
Mean or median, whichever was available. If both were available, mean was used.