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Table 3 Predictors for FP-consultation rate (incidence rate ratios (IRRs) from multivariate Poisson regression models##).

From: Follow-up study on health care use of patients with somatoform, anxiety and depressive disorders in primary care

 

FP consultation

 

IRR

95% CI

Model 1 #

  

Undifferentiated somatoform disorders $

* 1.3

(1.1–1.7)

Other somatoform disorders $$

1.3

(0.7–2.2)

Depressive disorders

1.5

(1.0–2.3)

Anxiety disorders

0.9

(0.7–1.4)

CIRS somatic morbidity score

  

- low score (<5)

1.0

reference

- intermediate score (5–8)

1.2

(1.0–1.5)

- high score (≥ 9)

** 1.6

(1.3–1.9)

Model 2 @

  

Psychiatric disorders

  

- none of the psychiatric disorders (n = 274)

1.0

reference

- a single disorder (n = 91)

* 1.3

(1.1–1.6)

- two or more disorders (n = 35)

* 1.7

(1.2–2.5)

CIRS somatic morbidity score

  

- low score (<5)

1.0

reference

- intermediate score (5–8)

1.2

0.9–1.6

- high score (≥ 9)

** 1.6

1.3–1.9

  1. ## All models were additionally adjusted for the sampling scheme and for patients' age and gender and the number of unique somatic prescriptions in year prior to follow-up.
  2. $ Undifferentiated somatoform disorders included chronic pain disorders.
  3. $$ Other somatoform disorders: hypochondriasis, somatization disorder and conversion disorder.
  4. # Model 1: reference groups are patients without a disorder in the specified diagnostic group (including patients without any of the psychiatric disorders).
  5. @ Model 2: reference groups are patients without any of the specified disorders; a single disorder = a somatoform or depressive or anxiety disorder; two or more disorders = a somatoform disorder with co-morbid anxiety or depressive disorder, or anxiety disorder with co-morbid depressive disorder.
  6. * p ≤ 0.05; ** p ≤ 0.005
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