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Table 3 Parameters for Gompertz-Makeham model and likelihood ratio test results.

From: Identifying sexual differentiation genes that affect Drosophila life span

 

Parameters

Mutant

Control

chi2

df

p Value

chi2

df

p Value

Tudor Exp 1

 

one parameter compared at each time

     

Males

      

Both a and b are constrained

 

a

1.00 × 10-4

7.00 × 10-5

0.13

1

0.724

   
 

b

2.07 × 10-1

2.29 × 10-1

0.73

1

0.392

   
 

c

2.06 × 10-9

7.52 × 10-3

17.65

1

< 0.001

23.76

1

< 0.001

Females

      

c is constrained

 

a

3.20 × 10-4

1.04 × 10-6

13.23

1

< 0.001

13.34

1

< 0.001

 

b

1.93 × 10-1

2.91 × 10-1

5.84

1

0.016

5.47

1

0.019

 

c

1.43 × 10-2

1.66 × 10-2

0.37

1

0.541

   

Tudor Exp 2

         

Males

      

Both a and b are constrained

 

a

8.38 × 10-8

6.03 × 10-7

2.60

1

0.107

   
 

b

3.19 × 10-1

3.06 × 10-1

0.23

1

0.633

   
 

c

1.67 × 10-3

4.67 × 10-3

7.98

1

0.005

18.46

1

< 0.001

Females

         
 

a

6.40 × 10-7

3.46 × 10-7

0.33

1

0.565

   
 

b

3.07 × 10-1

3.17 × 10-1

0.15

1

0.694

   
 

c

3.76 × 10-3

3.69 × 10-3

0.00

1

0.949

  Â