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. 2020 Apr 24;228(8):615–622. doi: 10.1038/s41415-020-1452-7

Table 2.

Forest plot of the RCTs. Review: enhanced oral hygiene maintenance for the prevention of non-ventilated pneumonia. Comparison: enhanced oral care versus usual care. Outcome: prevention of pneumonia

Study Experimental Control Risk ratio RR 95% CI Weight
Events Total Events Total
Adachi (2002) 5 40 9 48

graphic file with name 41415_2020_1452_Fig2_HTML.jpg

0.67 (0.24; 1.83) 8.5%
Bourigault (2011) 93 868 203 1,645 0.87 (0.69; 1.09) 29.9%
Juthani-Mehtha (2015) 119 277 94 298 1.36 (1.10; 1.69) 30.5%
Ohsawa (2003) 5 25 6 24 0.80 (0.28; 2.28) 8.0%
Panchabhai (2009) 2 136 4 164 0.60 (0.11; 3.24) 3.6%
Yoneyama (2002) 21 184 34 182 0.61 (0.37; 1.01) 19.6%
Random effects model 1,530 2,361 0.89 (0.64; 1.25) 100.0%
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Heterogeneity: I2 = 65%, tau2 = 0.0853, p = 0.01