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. 2022 Feb 17;23:34. doi: 10.1186/s12931-022-01939-5

Fig. 3.

Fig. 3

Forest plot showing the meta-analysis of odds ratios for CVD in participants with restricted spirometry compared with those without it adjusted for sex, age, BMI, smoking (pack-years and current status) and education. Heterogeneity chi-squared = 40.13, d.f. = 26 (p = 0.038). I-squared (variation in ES attributable to heterogeneity) = 35.2%. Estimate of between-study variance Tau-squared = 0.0523. Test for overall effect: Z = 5.66 (p < 0.001). The following sites could not be included in the analysis due to a low number of subjects reporting CVD or singularity in the data: Blantyre (Malawi), Ife (Nigeria), Mumbai (India), Penang (Malaysia), Pune (India), Srinagar (India)