Table 3.

Crude rate for dementia diagnosis by exposure to partner bereavement, and unadjusted and adjusted hazard ratios, by time since partner bereavement

	No of events	Total person time (person-years)	Crude rate (per 1000 person-years)	Crude HR* (95% CI)	Minimally-adjusted HR** (95% CI)	Adjusted HR† (95% CI)
Time since bereavement
0–3 months
No partner bereavement	254	30337	8.37 (7.40–9.47)	1.00	1.00	1.00
Partner bereavement	367	30288	12.12 (10.94–13.42)	1.45 (1.23–1.70)	1.46 (1.24–1.72)	1.43 (1.20–1.71)
0–6 months
No partner bereavement	497	59462	8.36 (7.65–9.13)	1.00	1.00	1.00
Partner bereavement	626	59353	10.55 (9.75–11.41)	1.26 (1.12–1.42)	1.26 (1.12–1.43)	1.24 (1.09–1.41)
0–12 months
No partner bereavement	948	114201	8.30 (7.79–8.85)	1.00	1.00	1.00
Partner bereavement	1055	114197	9.24 (8.70–9.81)	1.11 (1.02–1.21)	1.09 (0.99–1.20)	1.07 (0.97–1.18)
0–2 years
No partner bereavement	1718	210785	8.15 (7.77–8.55)	1.00	1.00	1.00
Partner bereavement	1800	212233	8.48 (8.10–8.88)	1.04 (0.97–1.11)	1.02 (0.95–1.09)	0.99 (0.92–1.07)
0–5 years
No partner bereavement	3549	416015	8.53 (8.25–8.82)	1.00	1.00	1.00
Partner bereavement	3676	428840	8.57 (8.30–8.85)	1.00 (0.96–1.05)	0.95 (0.90–1.00)	0.92 (0.87–0.97)
Complete follow-up
No partner bereavement	5697	613802	9.28 (9.04–9.53)	1.00	1.00	1.00
Partner bereavement	6520	658900	9.90 (9.66–10.14)	1.06 (1.02–1.09)	0.96 (0.91–1.01)	0.94 (0.89–0.98)

HR, hazard ratio; CI, confidence interval. *Cox model with time in study time scale, and no stratification by matched set. **Cox model with age time scale, stratified by matched set, additionally adjusted for sex, calendar time, IMD and time since bereavement. †Additional adjustment for: BMI, smoking status, alcohol use, depression, diabetes, hearing loss, hypertension and carer status.