Table 5.

Lowered odds of having incident neurocognitive disorder among tea drinkers as compared with non-tea drinkers: stratifed analyses based on gender and APOE ɛ4 status at baseline

		Subgroup	Subgroup N	Tea consumption N	NCD N (%)	Adjusted OR (95% CI)
Men	367	Yes No		289 78	23 (8.0) 9 (11.5)	0.91 (0.34 – 2.49)
Women	590	Yes No		371 219	16 (4.3) 24 (11)	0.32 (0.15 – 0.69)
APOE ɛ4 carriers	177	Yes No		128 49	5 (3.9) 6 (12.2)	0.14 (0.02 – 0.93)
Non APOE ɛ4 carriers	722	Yes No		494 228	31 (6.3) 24 (10.5)	0.56 (0.30 – 1.04)

Odds Ratios and 95% confdence intervals of incident NCD for tea drinkers, calculated using multiple logistic regression; Variables that were adjusted for in the model are: age, gender, education, smoking, Alcohol consumption, BMI (continuous), Hypertension, Diabetes, Heart disease, Stroke, Depression (GDS ≥5), APOE ɛ4, Physical activities, social and productive activities, vegetables and fruits consumption, fsh consumption, coffee consumption; The two interaction terms were tested in the logistic regression model for the entire study sample, both interactions were not signifcant at alpha=0.05 level. P value for the interaction term tea-gender was 0.089; P value for the interaction term tea*APOE ɛ4 was 0.431.