Table 1 The main characteristics of the included studies
From: Association between abdominal obesity and asthma: a meta-analysis
First author (year) | Region | Study design | Sample size | Participants | Anthropometric measures of abdominal obesity | Results | |
|---|---|---|---|---|---|---|---|
Papoutsakis (2015), [23] | Greece | Case–control | 514 | 5–11 years old | WC WHtR | WC | 1.99 (1.07, 3.68) |
WHtR | 2.24 (1.47, 3.40) | ||||||
Musaad (2009), [32] | US | Case–control | 584 | 5–18 years old | WC WHtR CI | WC | 1.20 (0.49, 2.92) |
WHtR | 2.00 (0.93, 4.31) | ||||||
CI | 2.63 (1.19, 5.82) | ||||||
Leone (2012), [33] | French | Cohort | 6267 | ≥ 65 years old | WC | WC | 3.84 (1.55, 9.49) |
Egan (2015), [28] | Norway | Cohort | 3139 | 12–30 years old | WC | WC | 1.38 (1.07, 1.78) |
WC (male) | 1.80 (1.20, 2.71) | ||||||
WC (female) | 1.11 (0.80, 1.54) | ||||||
Chen (2014), [34] | China | Cohort | 2758 | 4th to 6th grade | WC WHR WHtR | WC | 1.22 (0.60, 2.50) |
WHtR | 1.17 (0.57, 2.39) | ||||||
WHR | 1.53 (0.64, 3.66) | ||||||
Brumpton (2013), [35] | Norway | Cohort | 23,191 | 19–55 years old | WC | WC | 1.62 (1.36, 1.94) |
Brumpton (2013), [35] | Norway | Cohort | 23,245 | 19-65Â years old | WC | WC (male) | 0.88 (0.53, 1.47) |
WC (female) | 1.46 (1.04, 2.05) | ||||||
Kronander (2004), [29] | Sweden | Cohort | 4178 | 20–50 years old | WC | WC | 2.60 (1.32, 5.12) |
WC (male) | 5.21 (1.52, 17.84) | ||||||
WC (female) | 1.80 (0.78, 4.12) | ||||||
Turley (2006), [26] | New Zealand | Cross-sectional | 10,026 | 25–44 years old | WC | WC (male) | 1.60 (0.90, 2.30) |
WC (female) | 1.40 (1.00, 1.80) | ||||||
Appleton (2006), [25] | Australia | Cross-sectional | 4060 | ≥ 18 years old | WC WHR | WC (male) | 1.10 (0.70, 1.70) |
WC (female) | 1.50 (1.00, 2.10) | ||||||
WHR (male) | 1.30 (0.70, 2.50) | ||||||
WHR (female) | 1.50 (1.00, 2.20) | ||||||
Egan (2014), [10] | Norway | Cross-sectional | 15,625 | 12–19 years old | WC | WC | 1.36 (1.16, 1.60) |
WC (male) | 1.38 (1.12, 1.70) | ||||||
WC (female) | 1.33 (1.04, 1.69) | ||||||
Ma (2010), [11] | US | Cross-sectional | 4493 | ≥ 20 years old | WC | WC | 1.75 (1.22, 2.51) |
Chen (2005), [27] | Canada | Cross-sectional | 2057 | 18–79 years old | WC | WC (male) | 0.99 (0.51, 1.93) |
WC (female) | 1.87 (1.18, 2.98) | ||||||