Table 2 Characteristics of included studies
From: Meta-analysis of the growth rates of abdominal aortic aneurysm in the Chinese population
First author, year | Study type | Number of patients (women) | US/CT | Aortic diameter measured | Frequency of follow-up | Cardiovascular risks | Length of follow-up (enrolment dates) | Method of growth rate estimating and reporting | Baseline AAA/cm | Growth rates cm/year |
|---|---|---|---|---|---|---|---|---|---|---|
Li, J., 2008 | Obs R | 78 (3) | US | Maximal external cross-sectional in any plane | Once a year | Hypertension (n = 57) DM (n = 18) CHD (n = 62) MI (n = 32) Hypercholesterolemia (n = 44) Smoking (n = 52) | 1~25 years, mean 7.9 ± 5.5 years (1975–2007) | Not reported; x ± sd | Overall: 2.1–5.7 (n = 64), [Growth rate only calculated for 64 patients | 0.18 ± 0.23 |
2.1–2.9 (n = 27) | 0.13 ± 0.16 | |||||||||
3.0–4.9 (n = 30) | 0.09 ± 0.07 | |||||||||
≧5.0 (n = 14) | 0.46 ± 0.33 | |||||||||
Wu, Q., 2009 | Obs R | 66 (4) | US | Maximal external cross-sectional in any plane | unclear | Hypertension (n = 66) DM (n = 28) CHD (n = 62) Hyperglycemia (n = 61) Peripheral atherosclerosis (n = 63) CI (n = 30) Smoking (n = 62) | 11 years maximum (1997–2008) | Not reported; x ± sd | Overall:3.0–9.2 (n = 66) | 0.75 ± 0.34 |
3.0~4.9 (n = 31) | 0.45 ± 0.24 | |||||||||
≧5.0 cm (n = 35) | 1.02 ± 0.10 | |||||||||
Zhang, L.F., 2006 | Obs P | 37 (4) | US | Maximal external cross-sectional in any plane | unclear | Hypertension (n = 21) CHD (n = 17) DM (n = 7) CI (n = 11) CRF (n = 3) PHD (n = 3) Other (n = 9) | 0.5~11 years, mean 6.1 (unclear) | Not reported; x ± sd | Overall:3.0–8.9 (n = 37) | X = 0.38 ± 0.26 |
3.0~3.9 (n = 14) | 0.23 ± 0.11 | |||||||||
4.0~5.9 (n = 15) | 0.37 ± 0.24 | |||||||||
6.0~8.9 (n = 8) | 0.67 ± 0.29 | |||||||||
Song, H.G., 2013 | Obs R | 57 (25) | US | Maximal external cross-sectional in any plane | Unclear | Unclear | 1~8 years, mean 4.1 ± 1.6 years (unclear) | Not reported;x ± sd | Overall: unclear (n = 57) | 0.40 ± 0.22 |
3.0–3.9 (n = 21) | 0.21 ± 0.05 | |||||||||
4.00~5.9 (n = 22) | 0.38 ± 0.13 | |||||||||
> 6.0 (n = 14) | 0.71 ± 0.14 |