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Table 5 Data used in meta-regression analyses

From: Relationship of cardiometabolic parameters in non-smokers, current smokers, and quitters in diabetes: a systematic review and meta-analysis

Study Mean age Participants age Type of diabetes % Male Study design Duration smoked
(mean years)
Pack years Years stopped
Gerber et al. [49] 35.9 Over 16 1 56 Cohort Not reported 21.6 Not reported
Hansen et al. [47] 31.9 Over 16 1 59 Cross-sectional 15.5 Not reported Not reported
Hofer et al. [43] 13.7 Under 22 1 52.5 Cross-sectional Not reported Not reported Not reported
Lycett et al. [51] 61.6 Over 16 2 60.2 Cohort Not reported Not reported Not reported
Nilsson et al. [48] 40.9 Over 16 1 53.8 Cross-sectional Not reported Not reported Not reported
Nilsson et al. [48] 67.6 Over 16 2 54 Cross-sectional Not reported Not reported Not reported
Ohkuma et al. [50] 65.1 Over 16 2 100 Cross-sectional 41.6 43.8 17.6
Reynolds et al. [42] 14.8 Under 22 1 50.2 Cross-sectional 4.5 Not reported Not reported
Reynolds et al. [42] 16.3 Under 22 2 37.6 Cross-sectional 2.1 Not reported Not reported
Thomas et al. [44] 53.2 Over 16 2 100 Cross-sectional Not reported Not reported Not reported
Wakabayashihi et al. [46] 53.4 Under 22 1 and 2 100 Cross-sectional Not reported Not reported Not reported