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. 2012 Feb 20;1(1):42–50. doi: 10.1161/JAHA.111.000034

Table 3.

Relation of NIHSS Categories to 30-Day Mortality in Acute Ischemic Stroke

NIHSS Categories 30-Day Mortality Portion of Patients Portion of Deaths
0–7 4.2% (4.0%–4.5%) 61.3% 19.2%

8–13 13.9% (13.0%–14.8%) 17.1% 17.4%

14–21 31.6% (30.2%–32.9%) 13.4% 31.1%

22–42 53.5% (51.7%–55.4%) 8.2% 32.3%

c-statistic 0.80 (0.79–0.80)

0–7 4.2% (4.0%–4.5%) 61.3% 19.2%

8–13 13.9% (13.0%–14.8%) 17.1% 17.4%

14–42 39.9% (38.8%–41.0%) 21.6% 63.4%

c-statistic 0.79 (0.78–0.79)

0–5* 3.6% (3.3%–3.9%) 51.7% 13.7%

6–13* 11.6% (11.0%–12.3%) 26.7% 22.9%

14–42* 39.9% (38.8%–41.0%) 21.6% 63.4%

c-statistic 0.79 (0.78–0.80)

NIHSS indicates National Institutes of Health Stroke Scale.

*

This categorization derived from reference 8.

The 95% confidence intervals are shown in parentheses.