Subject demographics from included studies that developed reference equations for oscillometric parameters of interest
| Study | Subjects (n) | Males (n) | Height (cm) | Weight (kg) | Age (years) | Smoking history (pack-years) |
| Shiota et al. [22] | 166 | 69 | 162.7±8.3 | 58.9±11.2 | 38.6±17.2 (20–81) | 22.2±22.1 |
| Newbury et al. [20] | 125 | 59 | 175.89±8.77 164.58±6.56 | 87.3±11.49 73.3±12.41 | 49.54 (25–74) 48.76 (25–74) | <5 |
| Brown et al. [18] | 904 | 341 | 176.7±6.7 163.5±6.5 | 84.2±13.1 69.3±13.5 | 55.6±17.5 54.7±17.7 | <5 |
| Aarli et al. [24] | 75 | 40 | 173±6 159±6 | 76.4±12.7 65.5±10.8 | 79.4±6.9 78.8±6.3 | 20/4 |
| Schulz et al. [23]# | 397 | 154 | 173.30 (163.00–188.41) 160.07 (149.00–172.24) | 80.89 (67.02–106.76) 68.37 (53.40–91.05) | 64.89 (46.00–84.75) 67.26 (46.00–85.00) | 0 |
| Oostveen et al. [16] | 368 | 180 | 171.44# | 54–128 43–111 | 49.55# (18–84) | 4.4 |
| Ribeiro et al. [21] | 288 | 144 | 173±1 (153–189) 160±1 (145–181) | 78.78±2.07 (49–128) 65.02±1.79 (47–96) | 49.04±2.88 (20–81) 49.0±2.88 (20–86) | |
| De et al. [19] | 323 | 122 | 168.1±8.2 154.8±6.5 | 65.5±13.3 | 42.7±13.7 40.9±13.7 | <1 |
| Moitra et al. [15] | 190 | 92 | 45±18 41±17 | |||
| Berger et al. [17] | 439 | 223 | 177±7 (157–203) 164±7 (146–183) | 83.1±17.1 (51.3–170.0) 63.9±12.7 (43.1–147.4) | 46.7±11.2 (21–85) 44.0±11.9 (21–76) | <5 |
Data are presented as pooled totals (n) or according to sex (male/female) in mean±sd or mean (range), unless otherwise indicated. #: calculated from means of subgroups within study.