Table 3.

The association of physical multimorbidity (independent variable) with subjective concentration and memory complaints (dependent variables) estimated by multivariable logistic regression.

	Overall		Aged 16–44 years		Aged 45–64 years		Aged ≥65 years
	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
SCC	2.58	[2.25, 2.96]	2.48	[2.02, 3.06]	2.77	[2.20, 3.50]	2.57	[1.90, 3.47]
SMC	2.34	[2.08, 2.62]	2.40	[1.91, 3.00]	2.39	[1.97, 2.89]	2.12	[1.67, 2.68]

Abbreviations: OR Odds ratio; CI Confidence interval; SCC Subjective concentration complaints; SMC Subjective memory complaints.

Physical multimorbidity was defined as ≥2 physical conditions.

Subjective concentration complaints were assessed with the following question: “In the past month, have you had any problems with concentrating on what you were doing?”. Subjective memory complaints were assessed with the following question: “Have you noticed any problems with forgetting things in the past month?”.

Models were adjusted for sex, age, ethnicity, qualification and income.

All p-values were lower than 0.001.