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Table 2 The results of Poisson regression age-period-cohort models for NPC incidence in Sihui County, Guangdong Province, South China from 1987 to 2011

From: Incidence trend of nasopharyngeal carcinoma from 1987 to 2011 in Sihui County, Guangdong Province, South China: an age-period-cohort analysis

Variable

Sex

DF

Deviance

Deviance/DF

Age

Male

36

50.38

1.40

 

Female

36

42.67

1.19

Period

Male

40

290.03

7.25

 

Female

40

114.45

2.86

Cohort

Male

32

151.03

4.72

 

Female

32

57.77

1.80

Age-period

Male

32

46.36

1.45

 

Female

32

39.89

1.25

Age-cohort

Male

24

31.97

1.33

 

Female

24

23.50

0.98

Period-cohort

Male

28

100.57

3.59

 

Female

28

46.23

1.65

Age-period-cohort

Male

21

28.70

1.37

Female

21

20.55

0.98

  1. DF, degree of freedom.