Review Article
Circulating Resistin Levels and Risk of Colorectal Cancer: A Meta-Analysis
Table 2
Assessment of study quality.
| Quality indicators from Newcastle-Ottawa Scale | Kumor et al. [24] | Gonullu et al. [26] | Nakajima et al. [23] | Danese et al. [27] | Joshi et al. [18] | Lu et al. [28] | Tulubas et al. [21] | Wägsäter et al. [29] | Kosova et al. [25] | Hillenbrand et al. [32] |
| Independent validation of case definition | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | No | No | Consecutive or obviously representative series of cases | No | No | Yes | No | No | No | Yes | Yes | Yes | No | Community controls | No | No | No | No | No | No | No | Yes | No | No | Controls have negative colonoscopy | Yes | Yes | Yes | Yes | No | No | Yes | No | No | No | Study controls for age/gender | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Study controls for BMI | Yes | Yes | Yes | Yes | No | No | Yes | No | No | No | Secure record of resistin levels with blinded interview | No | No | No | No | No | No | No | No | No | No | The same method of resistin measurement for cases and controls | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | The same nonresponse rate for cases and controls | No | No | No | No | No | No | No | No | No | No | Score | 5 | 5 | 6 | 5 | 3 | 2 | 6 | 6 | 2 | 2 |
|
|