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Table 2 Mean values for continuous variables by class

From: Validating online approaches for rare disease research using latent class mixture modeling

Class Age (years) (range 18–68) Age at Dx (years) (range NN-48) Illness Perception Questionnaire-Revised Zung SDS (range 20–80)
Consequences (range 5–30) Emotional representations (range 5–30) Illness coherence (range 5–25)
F = 36.78
p < 0.001
F = 3.17
p = 0.045
F = 52.26
p < 0.001
F = 112.5
p < 0.001
F = 38.96
p < 0.001
F = 51.35
p < 0.001
I (n = 84) 31.7 ± 8.2
(29.9–33.5)
19.2 ± 16.7
(17.8–20.7)
22.9 ± 3.5
(22.1–23.7)
22.7 ± 3.7
(21.9–23.5)
15.2 ± 4.0
(14.3–16.0)
49.6 ± 9.5
(47.6–51.7)
II (n = 41) 37.0 ± 7.6
(34.6–39.4)
18.6 ± 4.9
(17.1–20.2)
16.2 ± 3.6
(15.0–17.3)
12.1 ± 3.7
(10.9–13.2)
19.6 ± 3.7
(18.4–20.7)
32.8 ± 9.9
(29.7–35.9)
III (n = 29) 47.0 ± 9.6
43.4–50.6)
16.0 ± 5.3 *
(13.9–18.0)
21.6 ± 3.1
(20.4–22.8)
16.9 ± 4.0
(15.4–18.5)
21.4 ± 2.6
(20.4–22.4)
32.7 ± 9.0
(32.7–39.5)
  1. Among class differences depicted using F and p values; data are shown as mean ± SD (95% confidence interval); Dx diagnosis, NN neonatal, SDS self-rating depression scale; ANOVA with Sheffe post hoc test *p < 0.05 vs. Class I, p < 0.005 vs. class I; p < 0.001 vs. class I