Table 3. Senescence markers and their correlations between short-term versus long-term experiments (2A).

	Distribution of markers
	Short-term experiment	Long-term experiment	Correlation coefficient	P-value
Non-stressed
ROS, FI	1559 (1356; 1734)	1500 (1366; 2205)	0.419	0.010
SAβ-gal, FI	2973 (2445; 3732)	3452 (2905; 4660)	-0.009	0.959
Stressed
ROS, FI	2095 (1753; 2324)	1835 (1553; 2205)	0.426	0.009
SAβ-gal, FI	4171 (3530; 5231)	4090 (3417; 5205)	-0.006	0.972

N=40. Correlations are Pearson’s partial correlation coefficient, adjusted for batch. All mean markers of short-term experiments I and II were correlated with the same markers in the long-term experiment. FI: fluorescence intensity. ROS: mean fluorescence intensity peak reactive oxygen species; SAβ-gal: median fluorescence intensity peak senescence-associated β galactosidase.