Table 3.

Hazard ratios, 95% confidence intervals and p-values for baseline Hamilton depression scale scores in relation to clinical symptom onset of MCI, stratified by progression within vs after 7 years from baseline.

Variables	HR	95% CI	P-value
HAM-D continuous
Progression < 7 years	1.11	1.00, 1.23	0.043
Progression > 7 years	0.91	0.79, 1.05	0.194
HAM-D >1 vs 0-1
Progression < 7 years	1.83	0.88, 3.81	0.108
Progression > 7 years	0.79	0.42, 1.50	0.471

Separate models were run for the continuous and dichotomous HAM-D scores. Models were adjusted for gender, baseline age, and education. HAM-D = Hamilton Depression Scale, CI = Confidence Interval, HR = hazard ratio, MCI = mild cognitive impairment.