Table 2. Shows the characteristics of admission in the seventeen terminal nodes (in descending risk) of the Tree model.
| Characteristics from Tree model | Terminal Node | Sample size | Mortality Risk (95% Confidence Interval) |
| (1) alb >34.5; (11) news >5; (29) urea >26.3; (33)* | 33 | 25 | 0.600(0.387 to 0.789) |
| (1) alb ≤34.5; (2) news >5; (10)* | 10 | 209 | 0.512(0.442 to 0.582) |
| (1) alb ≤34.5; (2) news ≤5; (3) urea ≤7.3; (4); na ≤124; (5)* | 5 | 14 | 0.429(0.177 to 0.711) |
| (1) alb >34.5; (11) news >5; (29) urea ≤26.3; (30); age >81; (32)* | 32 | 144 | 0.271(0.200 to 0.351) |
| (1) alb ≤34.5; (2) news ≤5; (3) urea >7.3; (7); alb ≤32; (8)* | 8 | 407 | 0.263(0.221 to 0.309) |
| (1) alb >34.5; (11) news ≤5; (12) urea >8.9; (24); WCC >17.95; (28)* | 28 | 117 | 0.197(0.129 to 0.280) |
| (1) alb ≤34.5; (2) news ≤5; (3) urea >7.3; (7); alb >32; (9)* | 9 | 249 | 0.133(0.093 to 0.181) |
| (1) alb >34.5; (11) news >5; (29) urea ≤26.3; 30); age ≤81; (31)* | 31 | 420 | 0.119(0.090 to 0.154) |
| (1) alb >34.5; (11) news ≤5; (12) urea >8.9; (24); WCC ≤17.95; (25) age ≤74; (26)* | 27 | 1276 | 0.098(0.082 to 0.116) |
| (1) alb ≤34.5; (2) news ≤5; (3) urea ≤7.3; (4); na >124; (6)* | 6 | 417 | 0.072(0.049 to 0.101) |
| (1) alb >34.5; (11) news ≤5; (12) urea ≤8.9; (13); alb ≤37; (14)* | 14 | 657 | 0.068(0.050 to 0.091) |
| (1) alb >34.5; (11) news ≤5; (12) urea ≤8.9; (13); alb >37; (15) age >76; (21) news ≤1; (22)* | 23 | 514 | 0.056(0.038 to 0.080) |
| (1) alb >34.5; (11) news ≤5; (12) urea ≤8.9; (13); alb >37; (15) age >76; (21) news >1; (23)* | 26 | 668 | 0.037(0.024 to 0.055) |
| (1) alb >34.5; (11) news ≤5; (12) urea ≤8.9; (13); alb >37; (15) age ≤76; (16) news >3; (20)* | 20 | 450 | 0.022(0.011 to 0.040) |
| (1) alb >34.5; (11) news ≤5; (12) urea ≤8.9; (13); alb >37; (15) age ≤76; (16) news ≤3; (17) WCC >15.52; (19)* | 19 | 380 | 0.016(0.006 to 0.034) |
| (1) alb >34.5; (11) news ≤5; (12) urea ≤8.9; (13); alb >37; (15) age ≤76; (16) news >3; (20)* | 22 | 768 | 0.013(0.006 to 0.024) |
| (1) alb >34.5; (11) news ≤5; (12) urea ≤8.9; (13); alb >37; (15) age ≤76; (16) news ≤3; (17) WCC ≤15.52; (18)* | 18 | 4909 | 0.002(0.001 to 0.003) |
Nb: to be read in conjunction with the Tree model.
(Number) is node number.
*
indicates a terminal node. Nodes are separated by;.
alb = albumin, news = NEWS, na = Sodium, WCC = white cell count.