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Maximum Life-Span Test Results
| Group | Sum of Scores | Expected Score | p Value (one-sided Pr < Z) |
| CR vs CON | 1,488 vs 1,068 | 1,440 vs 1,116 (56.31) | 0.1995 |
| MET vs CON | 1,457 vs 1,099 | 1,440 vs 1,116 (52.17) | 0.3759 |
| PF–MET vs CON | 1,473 vs 1,084 | 1,440 vs 1,116 (54.31) | 0.2779 |
Note: CON = control; CR = calorie restriction; MET = metformin; PF–MET = pair fed to metformin.
