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Table 1 Intraductal injection of ethanol delays onset of tumor formation

From: Ductal tree ablation by local delivery of ethanol prevents tumor formation in an aggressive mouse model of breast cancer

 

Non-injected vs. non-injected glands

Non-injected vs. injected glands

Animal groups

Animals (n)

Latency (days)

Glands (n)

p value

Latency (days)

Glands (n)

p value

Untreated vs. not injected

25 vs. 10

150 vs. 169

250 vs. 100

0.4279

n/a

n/a

n/a

Untreated vs. PBS-injected

25 vs. 10

150 vs. 161

250 vs. 43

0.9110

150 vs. 148

250 vs. 57

0.6570

Untreated vs. 50% EtOH-injecteda

25 vs. 6

150 vs. 184

250 vs. 36

0.0366

150 vs. 198

250 vs. 24

0.0049

Untreated vs. 70% EtOH-injecteda

25 vs. 11

150 vs. 178

250 vs. 58

0.0151

150 vs. 207

250 vs. 52

< 0.0001

Untreated vs. 70% EtOH-injectedb

25 vs. 13

150 vs. 176.5

250 vs. 35

0.0059

150 vs. 217

250 vs. 95

< 0.0001

Within PBS-injected

10

n/a

n/a

n/a

161 vs. 148

43 vs. 57

0.7274

Within 50% EtOH-injecteda

6

n/a

n/a

n/a

184 vs. 198

36 vs. 24

0.2987

Within 70% EtOH-injecteda

11

n/a

n/a

n/a

178 vs. 207

58 vs. 52

0.0002

Within 70% EtOH-injectedb

13

n/a

n/a

n/a

176.5 vs. 217

35 vs. 95

0.0006

  1. Median latency in days of age is provided for indicated animal treatment group or mammary gland treatment class. p values were calculated by the log-rank test (Mantel-Cox) comparing tumor-free survival between indicated treatment groups or classes (reference vs. test). aEtOH was diluted in sterile PBS with iodine-containing contrast agent. bEtOH was diluted in sterile water