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Table 1 Risk Assessment for early Mortality (RAM)a score for hepatectomy for hepatocellular carcinoma

From: RAM score is an effective predictor for early mortality and recurrence after hepatectomy for hepatocellular carcinoma

Variables

Score allocationb

Total score

No. (% of total)

6-month mortality (%)

Total score

No. (% of total)

6-month mortality (%)

Diabetes mellitus

1

0

36 (1.8)

1 (2.8)

6

203 (10.5)

27 (13.3)

Albumin ≤ 3.5 g/dL

2

1

36 (1.8)

2 (5.6)

7

112 (5.7)

21 (18.75)

α-fetoprotein > 200 ng/mL

2

2

532 (27.5)

11 (2.1)

8

76 (3.9)

12 (15.8)

Major resectionc

1

3

308 (15.9)

10 (3.2)

9

39 (2.0)

9 (25.6)

Blood loss > 800 mL

1

4

288 (14.9)

20 (6.9)

10

6 (0.3)

2 (33.3)

Major surgical complicationsd

3

5

299 (15.5)

30 (10)

Total

1935 (100)

145 (7.5)

RAM scoree

Score

6-month mortality (%)

 Class I

0–6

101 (5.9)

p < 0.001

 Class II

7–9

42 (18.5)

 Class III

10

2 (33.3)

  1. aRisk Assessment for early Mortality score
  2. bthe regression coefficients (B) were multiplied by two and rounded to integer in order to calculate the RAM score
  3. cincludes tri-segmentectomy, right/left lobectomy, and extended right/left lobectomy
  4. dmajor surgical complications include grade III-IV surgical complications
  5. eAUC = 0.723, P < 0.001. When Cutoff score is 4.5, the sensitivity and specificity for 6-month mortality was 0.717 and 0.644, respectively