Copyright ©The Author(s) 2018.
World J Gastroenterol. Jun 7, 2018; 24(21): 2311-2319
Published online Jun 7, 2018. doi: 10.3748/wjg.v24.i21.2311
Table 2 Results of the Newcastle-Ottawa quality assessment scale for cross-over and cohort studies
Item 1Item 2Item 3Item 4Item 5Item 6Item 7Item 8
Ahn et al[21] 2015-N/A++-?+?Modified NOS
Kochhar et al[21] 2015-N/A++-?++Modified NOS
Kochhar et al[21] 2015+N/A++-?++Modified NOS
Nijhawan et al[21] 2015-N/A++--++Modified NOS
Orive-Calza et al[21] 2015--+?+++?NOS