Table 3.

The Effect of Missing MMSE at Baseline (Unclassifiable Participants) on Delirium Outcomes

	OR	95% CI	p value*
MMSE, per point	0.965	(0.933–0.998)	0.036
Age, per year	1.073	(0.988–1.167)	0.093
Sex, women cf. men	2.211	(1.003–4.877)	0.049
Comorbidity score	1.029	(0.893–1.185)	0.693

Notes: Logistic regression model showing odds of incident delirium according to baseline cognitive function, including participants with incomplete MMSE assessments, where this was imputed as lowest score (MMSE = 0). N = 492 in 237 clusters. Goodness of fit for model residuals p = 0.085 (Pearson χ² = 444.55). *2-tailed p value used in testing the null hypothesis that the coefficient (parameter) is 0, Wald χ² for 4 degrees of freedom = 17.97. MMSE: Mini-Mental Status Examination.