Table 4.
Effect of phosphatidylcholine on lifespan of wild-type N2 and long-lived mutants.
| Mean lifespan (day) | P value1 | % effect2 | |||
|---|---|---|---|---|---|
| Control | 100 mg/l PC | ||||
| N2 | 1st experiment | 17.5 | 20.6 | <0.001 | 17.6 |
| 2nd experiment | 21.6 | 24.9 | <0.001 | 15.4 | |
| age-1 (hx546) | 1st experiment | 29.2 | 28.9 | 0.970 | -1.0 |
| 2nd experiment | 33.8 | 30.4 | 0.090 | -10.1 | |
| clk-1 (e2519) | 1st experiment | 22.2 | 25.4 | 0.013 | 14.7 |
| 2nd experiment | 22.0 | 25.8 | <0.001 | 17.2 | |
| eat-2 (ad465) | 1st experiment | 21.9 | 25.8 | 0.001 | 18.3 |
| 2nd experiment | 23.7 | 27.4 | 0.002 | 15.6 | |
1 P value was calculated using the log-rank test by comparing the survival of the untreated control group to that of the phosphatidylcholine-treated group. 2% effects were calculated by (C − p)/C ∗100, where p is the mean lifespan of the phosphatidylcholine-treated group and C is the mean lifespan of the untreated control group. PC: phosphatidylcholine.