Table 1.
Factors associated with one- (n = 50,933) and three-year (n = 38,521) mortality among patients with a first hospital admission or day clinic visit with dementia in the Netherlands
| Factor | Model for one-year mortality | Model for three-year mortality | ||||
|---|---|---|---|---|---|---|
| Overall (n = 50,993) N (%) | Univariate analysis OR (95% CI) | Multivariate analysis OR (95% CI) | Overall (n = 38,521) N (%) | Univariate analysis OR (95% CI) | Multivariate analysis OR (95% CI) | |
| Age, years | ||||||
| 60–69 | 2999 (5.9) | Ref. | Ref. | 2243 (5.8) | Ref. | Ref. |
| 70–79 | 15,770 (30.9) | 1.65 (1.50–1.82)* | 1.60 (1.44–1.77)* | 12,046 (31.3) | 1.93 (1.76–2.12)* | 2.01 (1.82–2.22)* |
| 80–89 | 26,593 (52.2) | 2.74 (2.49–3.01)* | 2.59 (2.34–2.87)* | 19,917 (51.7) | 3.54 (3.23–3.87)* | 3.84 (3.48–4.23)* |
| 90–99 | 5631 (11.0) | 5.02 (4.51–5.58)* | 4.76 (4.26–5.33)* | 4315 (11.2) | 8.13 (7.24–9.14)* | 9.29 (8.21–10.52)* |
| Sex | ||||||
| Women | 31,318 (61.4) | Ref. | Ref. | 23,749 (61.7) | Ref. | Ref. |
| Men | 19,675 (38.6) | 1.44 (1.39–1.50)* | 1.68 (1.62–1.75)* | 14,772 (38.3) | 1.59 (1.52–1.66)* | 1.95 (1.86–2.05)* |
| Type of care | ||||||
| Day clinic | 15,688 (30.8) | Ref. | Ref. | 10,598 (27.5) | Ref. | Ref. |
| Inpatient | 35,305 (69.2) | 4.81 (4.58–5.05)* | 4.34 (4.12–4.56)* | 27,923 (72.5) | 3.39 (3.24–3.55)* | 3.04 (2.89–3.19)* |
| Comorbiditya | ||||||
| 0 | 34,561 (67.8) | Ref. | Ref. | 26,503 (68.8) | Ref. | Ref. |
| 1–2 | 13,961 (27.4) | 1.31 (1.26–1.37)* | 1.48 (1.41–1.56)* | 10,270 (26.7) | 1.72 (1.61–1.83)* | 1.33 (1.26–1.40)* |
| > 3 | 2741 (4.8) | 2.08 (1.91–2.25)* | 2.28 (2.02–2.57)* | 1748 (4.5) | 3.32 (2.79–3.96)* | 2.61 (2.31–2.96)* |
| Type of dementiab | ||||||
| Alzheimer | 31,799 (62.4) | Ref. | Ref. | 24,225 (62.9) | Ref. | |
| Vascular dementia | 6555 (12.9) | 0.88 (0.83–0.93)* | 0.94 (0.89–1.00)** | 5078 (13.2) | 0.95 (0.89–1.01) | 1.02 (0.96–1.10) |
| Unknown type | 12,639 (24.8) | 0.58 (0.56–0.61)* | 0.79 (0.76–0.83)* | 9218 (23.9) | 058 (0.55–0.60)* | 0.80 (0.76–0.85)* |
N = number of patients, OR = odds ratio, 95% CI = 95% confidence interval and Ref = reference.
aMeasured with Charlson comorbidity index.
bSome patients had an unspecified type of dementia.
* P-value < 0.05.
** P-value < 0.1.