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Table 1 Statistical analyses of life spans

From: Delayed accumulation of intestinal coliform bacteria enhances life span and stress resistance in Caenorhabditis elegans fed respiratory deficient E. coli

Strain, food, treatment n mean ± s.d. (dy) max (dy) % change in mean life span from control p-value
N2, OP50 a 79 15 ± 4 20   
N2, GD1a 61 31 ± 5 38 + 107 <.0001
N2, OP50 b (Adult) 164 18 ± 3 29   
N2, GD1b 135 30 ± 5 34 + 67 <.0001
skn-1(zu169)−/−, OP50b 153 16 ± 3 20 − 11 <.0001
skn-1(zu169)−/−, GD1b 131 27 ± 6 35 + 50 <.0001
N2, GD1::pAHG, – UV c 52 18 ± 4 22   
N2, GD1::pBSK,–UVc 60 16 ± 4 22 − 11 .0001
N2, GD1::pAHG, + UVc 64 20 ± 3 22 + 11 <.0001
N2, GD1::pBSK, + UVc 64 21 ± 3 23 + 17 <.0001
N2, GD1::pAHG only d 71 23 ± 3 26   
N2, GD1::pBSK onlyd 69 30 ± 6 42 + 30 <.0001
N2, Mixedd 58 25 ± 4 33 + 9 <.0001
N2, OP50 e 529 19 ± 5 27   
N2, GD1e 225 26 ± 8 39 + 37 <.0001
coq-3(ok506)−/−, OP50e 119 15 ± 6 29 − 21 <.0001
coq-3(ok506)−/−, GD1e 102 30 ± 12 50 + 58 <.0001
coq-3(qm188)−/−, OP50e 259 16 ± 5 25 − 16 <.0001
coq-3(qm188)−/−, GD1e 141 33 ± 18 63 + 74 <.0001
N2, OP50 f (Adult) 63 16 ± 4 22   
N2, GD1f 55 28 ± 7 40 + 75 <.0001
coq-3(ok506)−/−, OP50f 84 8 ± 3 14 − 50 <.0001
coq-3(ok506)−/−, GD1f 53 34 ± 8 47 + 113 <.0001
  1. a, b, c, d, e, f, identify cohorts from the same experiment. Within each cohort data were subjected to One-Way ANOVA analyses with Fisher's test at a significance of 0.05.
  2. (p-values are compared to the condition in bold text for a given cohort).