Table 2

Associations of CFS/ME patient characteristics with discontinuation of employment: analyses based on patients with complete data for all variables in table (N = 1,397 of whom 641 (45.9%) currently employed, 756 (54.1%) discontinued employment)

Variable*

Partially-adjusted odds ratio**

(95% CI)

P-value

Fully-adjusted odds ratio***

(95% CI)

P-value


10-year age group

1.31 (1.19, 1.44)

< 0.001

1.16 (1.05, 1.29)

0.005

Sex (female vs male)

0.76 (0.59, 0.98)

0.03

0.62 (0.46, 0.82)

0.001

Duration of illness (years)

1.03 (1.01, 1.05)

0.003

1.01 (0.99, 1.03)

0.36

Chalder Fatigue

1.20 (1.12, 1.29)

< 0.001

1.02 (0.93, 1.11)

0.68

SF-36 (physical function)

0.70 (0.66, 0.74)

< 0.001

0.71 (0.67, 0.76)

< 0.001

HADS anxiety

1.04 (1.00, 1.09)

0.06

0.98 (0.92, 1.04)

0.42

HADS depression

1.18 (0.98, 1.25)

0.06

1.05 (0.98, 1.14)

0.16

Visual Analogue Pain

1.12 (1.08, 1.17)

< 0.001

1.00 (0.96, 1.05)

0.84


* Chalder Fatigue, SF-36, HADS, and Visual Analogue Pain measures were re-scaled to range from 0 to 10. For SF-36, odds ratio < 1 indicates that higher levels of disability are positively associated with discontinuation of employment.

** Adjusted only for centre and year of assessment (for continuous measures, odds ratio is per unit increase)

*** Adjusted for centre, year of assessment and all variables in table (for continuous measures, odds ratio is per unit increase)

Collin et al. BMC Health Services Research 2011 11:217   doi:10.1186/1472-6963-11-217

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