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Table 1 Number of residents in each cohort (1996-2006) dying within the 1st, 2nd and 3rd years from admittance, 3-year mortality and median survival in months

From: Predicting mortality of residents at admission to nursing home: A longitudinal cohort study

Sample N = 2206 Died within
1st year
n = 636 (28.8%)
Died within
2nd year#
n = 322 (14.6%)
Died within
3rd year##
n = 213 (9.7%)
3-year
mortality*
Median survival
(Q1,Q3)
Year Cohorts n (%)** n (%) n (%) n (%) % Months
1996 58 (19.9) 19 (32.8) 8 (13.8) 11 (19.0) 65.5 26.5 (10.0, 44.3)
1997 73 (22.1) 18 (24.7) 11 (15.1) 9 (12.3) 52.1 34.0 (14.0, 62.0)
1998 42 (13.1) 11 (26.2) 6 (14.3) 8 (19.0) 59.5 29.0 (9.0, 54.5)
1999 197 (54.3) 56 (28.4) 18 (9.1) 23 (11.7) 49.2 36.0 (10.5, 55.5)
2000 146 (40) 42 (28.8) 23 (15.8) 19 (13.0) 57.5 28.5 (11.0, 48.0)
2001 142 (39.2) 42 (29.6) 24 (16.9) 17 (12.0) 58.5 27.5 (8.0, 36.0)
2002 149 (28.9) 40 (26.8) 20 (13.4) 22 (14.8) 55.0 31.0 (9.5, 38.0)
2003 266 (52.9) 70 (26.3) 50 (18.8) 34 (12.8) 68.1 30.5 (10.8, 36.0)
2004 434 (69.7) 116 (26.7) 69 (15.9) 70 (16.1) NA NA
2005 401 (84.1) 106 (26.4) 93 (23.2) NA NA NA
2006 298 (54.4) 116 (38.9) NA NA NA NA
Total 2206 (46.6) 636 (28.8) NA NA NA NA
  1. *Chi-square test for trend showed no significant difference in mortality between cohorts
  2. ** Number of residents in each cohort and % of the total number of residents assessed that year [14]
  3. # Years 1996-2005; ## Years 1996-2004; NA = Not Applicable