Table 11 ASA class and risk

ASA class I-II

n, (%)

Goyal, 2017

245 (41.6%)

56 (26.9%)

0.001

Granzow, 2013

3 (18.75%)^a

3 (16.67%)^a

0.5

Demirtas, 2010

9 (75%)^a

5 (62.5%)^a

ND

5 (71.4%)^a

ND

Mallet, 2009

18 (75%)

33 (73.33%)

1.00

de Bree, 2007

32 (80%)

37 (92.5%)

0.028

Funk, 2002

10 (47.62%)

12 (57.14%)

0.226

ASA class III-IV

n, (%)

Goyal, 2017

343 (58.2%)

152 (73.1%)

0.001

Granzow, 2013

13 (81.25%)^a

15 (83.33%)^a

0.5

Demirtas, 2010

3 (25%)^a

3 (37.5%)^a

ND

2 (28.57%)^a

ND

Mallet, 2009

6 (25%)

12 (27%)

1.00

de Bree, 2007

8 (20%)

3 (8%)

0.028

Funk, 2002

11 (52.38%)

9 (42.86%)

0.226

ASA risk factor

(mean ± SD)

Sinha, 2017

2.6 ± 0.03

2.8 ± 0.05

0.0007

Forner, 2016

2.3

2.4

0.05

Demirtas, 2010

2.25 ± 0.4

2.37 ± 0.5

ND

2.28 ± 0.5

ND

Kroll, 1997

2.74 ± 0.61

2.80 ± 0.68

0.8011