Skip to main content

Table 2 Comparison of the 1996 and 2015 FQ samples

From: Norwegian reference data on the Fatigue Questionnaire and the Patient Health Questionnaire-9 and their interrelationship

Variables

1996 sample (N = 2,323)

2015 sample (N = 2,041)

p value

Age (years), mean (SD)

44.9 (16.5)

55.5 (14.1)

 < 0.001

Age groups (years), N (%)

 < 0.001

 < 29

510 (22)

101 (5)

 30–39

487 (21)

196 (10)

 40–49

446 (19)

392 (19)

 50–59

363 (16)

466 (23)

 ≥ 60

517 (22)

886 (43)

Sex, N (%)

0.02

 Female

1,192 (51)

1,118 (55)

 Male

1,131 (49)

923 (45)

Educational status, N (%)

 < 0.001

 Second level, first stage (lower)

621 (27)

281 (14)

 Second level, first stage (medium)

1,036 (45)

831 (41)

 Third level (university)

643 (28)

919 (45)

Married/cohabitant

1,609 (70)

1,549 (76)

 < 0.001