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Table 4 Mean time to relapse among geographic zones

From: Geographical variation in Plasmodium vivax relapse

Ecological zone Based on raw data, ML with 95% CI Model-based, REML with 95% CI
1 100 (CI: 99–101) 185 (CI: 162–208)
2 239 (CI: 239–240) 164 (CI: 117–212)
3 53 (CI: 53–53) 65 (CI: 18–113)
5 + 6 153 (CI: 153–153) 151 (CI: 80–221)
7 31 (CI: 30–31) 107 (CI: 57–158)
8 181 (CI: 180–181) 120 (CI: 82–159)
9 + 10 289 (CI: 288–290) 41 (CI: -11–92)
11 + 4 89 (CI: 87–90) 299 (CI: 254–345)
12 122 (CI: 121–123) 47 (CI: 12–81)
  1. The model-based estimates have been calculated by using the R package metafor, which acknowledges interstudy variation. Thus the numbers differ from raw means calculated from the data. ML refers to the maximum likelihood and REML to restricted maximum likelihood. Please note that sample means by the very definition concern only observed events, and consequently this table ignores person time from censored observations.