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Table 1 Numbers of respondents, non-respondents, and response rates by sex and age.

From: Adolescent survey non-response and later risk of death. A prospective cohort study of 78 609 persons with 11-year follow-up

Sex and age

Number of non-respondents

Number of respondents

Response rate (%)

Males

Age

   

   12

1067

4228

79.8

   14

2603

8110

75.7

   16

3346

9249

73.4

   18

3852

7699

66.7

Females

Age

   

   12

704

4340

86.0

   14

1300

8893

87.2

   16

1491

10 675

87.7

   18

1718

9334

84.5

Total

  

79.6