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Table 2 Example of number at risk file (corresponding to Figure 1, radiotherapy arm)

From: Enhanced secondary analysis of survival data: reconstructing the data from published Kaplan-Meier survival curves

Interval, i Time in months, triski Lower, loweri Upper, upperi Number at risk, nriski
1 0 1 30 213
2 10 31 58 122
3 20 59 83 80
4 30 84 102 51
5 40 103 120 30
6 50 121 128 10