Hi!

I have the following question: If I perform a logistic regression for "amount of fluid" (independent variable, unit is milliliters) and the outcome "pass = 1 vs. fail = 0" (as dependent variable) and receive the following results for b = 0,205 > so the odds ratio is 1,227 (EXP of 0,205).

Is it correct to say that:

1. an increase of 1 milliliter of fluid results in an increase of odds for pass by 1,227 and this is equal to an increase by 22,7 percent

2. a decrease of 1 milliliter of fluid results in a decrease of odds for pass by 0,814 (1 / 1,227) and this is equal to a decrease by 18,5 percent (1 - 1/1,227)

As one milliliter is of less interest than a change of 10 milliliters - is it correct to say that

3. an increase of 10 milliliters of fluid results in an increase of odds for pass by 7,768 (1,227^10) and this is equal to an increase by 776,8 percent

if 3. is correct, how can I calculate the odds for pass for a decrease of 10 milliliters as factor and percent?

Thank you for any help!

I have the following question: If I perform a logistic regression for "amount of fluid" (independent variable, unit is milliliters) and the outcome "pass = 1 vs. fail = 0" (as dependent variable) and receive the following results for b = 0,205 > so the odds ratio is 1,227 (EXP of 0,205).

Is it correct to say that:

1. an increase of 1 milliliter of fluid results in an increase of odds for pass by 1,227 and this is equal to an increase by 22,7 percent

2. a decrease of 1 milliliter of fluid results in a decrease of odds for pass by 0,814 (1 / 1,227) and this is equal to a decrease by 18,5 percent (1 - 1/1,227)

As one milliliter is of less interest than a change of 10 milliliters - is it correct to say that

3. an increase of 10 milliliters of fluid results in an increase of odds for pass by 7,768 (1,227^10) and this is equal to an increase by 776,8 percent

if 3. is correct, how can I calculate the odds for pass for a decrease of 10 milliliters as factor and percent?

Thank you for any help!

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