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Table 1 Age distribution of participants at the baseline.

From: Modeling of longitudinal polytomous outcome from complex survey data - application to investigate an association between mental distress and non-malignant respiratory diseases

Age group (15 and older)

Frequency (%)

15-19 years

1043 (7.1)

20-24 years

1215 (8.3)

25-29 years

1337 (9.1)

30-34 years

1668 (11.3)

35-39 years

1535 (10.4)

40-44 years

1288 (8.8)

45-49 years

1223 (8.3)

50-54 years

960 (6.5)

55-59 years

869 (5.9)

60-64 years

835 (5.7)

65-69 years

820 (5.6)

70 years and over

1920 (13.0)

Total (15 and older)

14713 (100.0)