{
    "info": {
        "nct_id": "NCT04071431",
        "official_title": "A Self-rating Risk Factor Questionnaire for the Improvement of Endoscopic Prediction of Gastrointestinal Cancer: a Big-data-based Diagnostic Study",
        "inclusion_criteria": "* Patients aged more than 18 years with or without GI symptoms attending for endoscopy.\nHealthy volunteers allowed\nMust have minimum age of 18 Years",
        "exclusion_criteria": "* Patients unable to cooperated the endoscopy or unable to complete it. People with endoscopy contraindications are naturally excluded.",
        "miscellaneous_criteria": ""
    },
    "inclusion_lines": [
        {
            "line": "* Patients aged more than 18 years with or without GI symptoms attending for endoscopy.",
            "criterions": [
                {
                    "exact_snippets": "aged more than 18 years",
                    "criterion": "age",
                    "requirements": [
                        {
                            "requirement_type": "minimum age",
                            "expected_value": {
                                "operator": ">",
                                "value": 18,
                                "unit": "years"
                            }
                        }
                    ]
                },
                {
                    "exact_snippets": "with or without GI symptoms",
                    "criterion": "GI symptoms",
                    "requirements": [
                        {
                            "requirement_type": "presence",
                            "expected_value": "with or without"
                        }
                    ]
                },
                {
                    "exact_snippets": "attending for endoscopy",
                    "criterion": "endoscopy attendance",
                    "requirements": [
                        {
                            "requirement_type": "intention",
                            "expected_value": true
                        }
                    ]
                }
            ]
        },
        {
            "line": "Healthy volunteers allowed",
            "criterions": [
                {
                    "exact_snippets": "Healthy volunteers allowed",
                    "criterion": "volunteer health status",
                    "requirements": [
                        {
                            "requirement_type": "status",
                            "expected_value": "healthy"
                        }
                    ]
                }
            ]
        },
        {
            "line": "Must have minimum age of 18 Years",
            "criterions": [
                {
                    "exact_snippets": "minimum age of 18 Years",
                    "criterion": "age",
                    "requirements": [
                        {
                            "requirement_type": "minimum",
                            "expected_value": {
                                "operator": ">=",
                                "value": 18,
                                "unit": "Years"
                            }
                        }
                    ]
                }
            ]
        }
    ],
    "exclusion_lines": [
        {
            "line": "* Patients unable to cooperated the endoscopy or unable to complete it. People with endoscopy contraindications are naturally excluded.",
            "criterions": [
                {
                    "exact_snippets": "unable to cooperated the endoscopy",
                    "criterion": "ability to cooperate with endoscopy",
                    "requirements": [
                        {
                            "requirement_type": "ability",
                            "expected_value": true
                        }
                    ]
                },
                {
                    "exact_snippets": "unable to complete it",
                    "criterion": "ability to complete endoscopy",
                    "requirements": [
                        {
                            "requirement_type": "ability",
                            "expected_value": true
                        }
                    ]
                },
                {
                    "exact_snippets": "endoscopy contraindications",
                    "criterion": "endoscopy contraindications",
                    "requirements": [
                        {
                            "requirement_type": "presence",
                            "expected_value": false
                        }
                    ]
                }
            ]
        }
    ],
    "miscellaneous_lines": [],
    "failed_inclusion": [],
    "failed_exclusion": [],
    "failed_miscellaneous": []
}