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. 2012 Aug 16;12:254. doi: 10.1186/1472-6963-12-254

Table 2.

Hazard ratios (HR) of waitlisting before policy change, after policy change (in 2001), and for the pre-/post-difference in waitlisting, by age/disability status and year

 
 
Secular trend
 
 
 
 
Pre-post difference
Model Group Period HR 95% CI P-value P#b HR 95% CI P-value
Full ITSaModel
<65/non-disabled
before policy change
1.00
0.97-1.02
0.681
0.364
0.91
0.83-1.00
0.063
 
 
after policy change
1.02
0.98-1.06
0.418
 
 
 
 
 
≥65/disabled
before policy change
1.05
1.02-1.08
<0.001
0.515
0.94
0.85-1.04
0.220
 
 
after policy change
1.03
0.99-1.08
0.123
 
 
 
 
Intermediate Model
<65/non-disabled
overall
1.00
0.98-1.02
0.989
-
0.93
0.85-1.01
0.099
 
≥65/disabled
overall
1.04
1.02-1.07
<0.001
-
0.93
0.84-1.02
0.135
Final Model
<65/non-disabled
-
-
-
-
-
0.93
0.89-0.97
0.002
  ≥65/disabled overall 1.04 1.02-1.07 <0.001 - 0.93 0.84-1.02 0.135

aITS = interrupted time series.

bP# = P-value for the equality of the within-group trends before and after policy change.