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Table 3 Results of subgroup meta- analyses for Campylobacter and reactive arthritis from studies published prior to July 2011

From: Systematic review and meta-analysis of the proportion of Campylobacter cases that develop chronic sequelae

Variable Summary estimate Lower 95% CI Upper 95% CI I2 Number of outcome measures
Overall Estimate 2.86% 1.4% 5.61% 97.7% 25
Follow Up Time      
Over a year 0.44% 0.04% 4.77% 98.9% 4
> 3 months to < year 3.42% 14.84% 12.92% 91.0% 4
< 3 months 5.92% 3.51% 9.81% 94.2% 11
Species      
Jejuni 3.29% 2.18% 4.93% 58.8% 11
Mix/undetermined* 8.27% 5.41% 12.46% 70.4% 6
Group Size      
Extra small 4.55% 1.99% 10.07% 66.7% 10
Small 3.73% 1.99% 6.33% 87.1% 8
Medium ^ ^ ^ ^ 3
Large 4.41% 0.45% 32.02% 99.3% 2
Extra large 0.06% 0.01% 0.26% 95.3% 2
  1. *Included combinations of jejuni, coli, spp and undetermined species.
  2. ^Not calculated, no variation between variables of interest as all outcome measures were from the same study.