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. 2016 Jul 18;17:322. doi: 10.1186/s13063-016-1392-3

Table 3.

World Health Organization performance score

World Health Organization performance score Definition
1 Asymptomatic, normal activity
2 Symptomatic, normal activity
3 Bedridden <50 % of the day during the last month
4 Bedridden ≥50 % of the day during the last month