Symptom load and functional status: results from the Ullensaker population study

BMC Public Health

Table 1 Functional status in an adult population, as a function of individual symptoms and the number symptoms reported

		ΔR²	β(95%CI)	Stand. Beta	BIC
Model I	NPS	0.249	0.69 (0.65-0.73)	0.51	15488
Model II	NN-MS	0.350	0.68 (0.65-0.71)	0.60	14963
Model III	NPS + NN-MS	0.392	0.45(0.43-0.46)	0.64	14796
Model IV	Ind. musculoskeletal symptoms	0.260	Ind.	Ind.	15450
Model V	Ind. non-musculoskeletal symptoms	0.424	Ind.	Ind.	14540
Model VI	Ind. musculoskeletal + non-musculoskeletal symptoms	0.482	Ind.	Ind.	14224

Footnote: Functional ability is measured on four COOP-WONCA scales: physical fitness, feelings, daily activities, social activities. Symptoms are grouped in NPS (Number of pain sites), NN-MS (Number of non-musculoskeletal symptoms). ΔR²: Change in correlation coefficients contributed by the variable (removing effect of age); β: unstandardized regression coefficient with CI (Confidence interval); Stand. beta: Standardised beta values converted to the same scale for all variables. BIC (Bayesian Information Criterion): a measure of fit applicable for model selection, penalising for the number of variables in the model (low value indicates better fit). Ind.: each component has an individual value.