Table 4
Comparison between studies of occupational groups done on black men in South Africa at higher altitude
| First author | Mean age (y) Mean height (cm) | Altitude | Men, age 38 y, height 171 cm | Type of sample | |||||
|---|---|---|---|---|---|---|---|---|---|
| FEV1 (95% CI) | FVC (95% CI) | ||||||||
| Whiteet al 12 | 36.1, 167.3 | 1500 | 4.12 (3.99 to 4.25) | 3.46 (3.36 to 3.56) | Textile workers | ||||
| Louwet al 5 | 41.1, 169.7 | 1700 | 4.21 (4.14 to 4.28) | 3.44 (3.57 to 3.51) | Bank workers, autolink | ||||
| Hessel and Sluis-Cremer14 | 41.6, 171.4 | 400 | 4.13 (—) | 3.29 (—) | Vermiculite miners | ||||
| Coetzee, cited in12 | 33.1, 169.4 | 1700 | 4.30 (4.25 to 4.35) | 3.55 (3.50 to 3.60) | Asbestos workers | ||||
| Mokoetle et al 13 | 42.0, 168.7 | 1700 | 4.42 (—) | 3.47 (—) | University workers | ||||
| Fox, cited in12 | 34.4, 171.7 | 1200 | 4.20 (4.16 to 4.24) | 3.52 (3.46 to 3.58) | Copper or nickel miners | ||||
| Our study | 38.7, 170.8 | 1200 | 4.12 (4.12 to 4.12) | 3.47 (3.47 to 3.47) | Gold miners | ||||
