What is the null hypothesis of this prostate cancer trial?

[PharmlyDoc]

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http://www.nejm.org/doi/full/10.1056/NEJMoa1606220#t=article

This is what I think..."There is no difference in prostate-cancer mortality between patients assigned to active monitoring, radical prostatectomy, radical radiotherapy at a median of 10 years of follow-up." ??

 

[BurghStudent]

http://www.nejm.org/doi/full/10.1056/NEJMoa1606220#t=article

This is what I think..."There is no difference in prostate-cancer mortality between patients assigned to active monitoring, radical prostatectomy, radical radiotherapy at a median of 10 years of follow-up." ??

For that first stat, exactly.

 

[PharmlyDoc]

For that first stat, exactly.

What do you mean for that first stat?

 

[BurghStudent]

What do you mean for that first stat?

Referring to this main finding:

There were 17 prostate-cancer–specific deaths overall: 8 in the active-monitoring group (1.5 deaths per 1000 person-years; 95% confidence interval [CI], 0.7 to 3.0), 5 in the surgery group (0.9 per 1000 person-years; 95% CI, 0.4 to 2.2), and 4 in the radiotherapy group (0.7 per 1000 person-years; 95% CI, 0.3 to 2.0); the difference among the groups was not significant (P=0.48 for the overall comparison).