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Extraction Form for KQs 2 and 4


Arm Name Suggestions

Arm Title Arm Description User Note
Setting: Inpatient management
Setting: Outpatient management
Antibiotics: Multiple (discretionary or undefined)
Antibiotics: Amoxicillin + Clavulanate
Antibiotics: Cephalosporin + Metronidazole
Antibiotics: Ciprofloxacin
IR: Percutaneous drainage
IR: No percutaneous drainage
Pharm: 5-ASA AKA mesalazine, mesalamine
Pharm: Probiotics
Non-pharm: Dietary modification
Elective surgery
Placebo
No intervention (non-placebo)

Arm Details

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Row Headers
Time
Mean
95% CI (Low, High)
Median
IQR (25, 75)
Minimum
Maximum
Comment
Question 10

Design Details and Enrollment

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Row Headers
Start Year
End Year
Years
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Question 15
Question 16

Baseline Characteristics Fields

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Question 3
Row Headers
Definition of category
%
Youngest category
2nd category
3rd category
4th category
5th category
Question 4
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Question 5
Row Headers
Definition
%
Abscess
Peritonitis
Free fluid
Free air
Fistula
Perforation
Other 1 (include name in definition)
Other 2 (include name in definition)
Not reported
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Question 8
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Question 10

Outcome Name Suggestions

Outcome Title Note
Resolution of diverticulitis
Return to normal bowel function
Length of hospital (or intensive care unit) stay
Interventional radiology procedure for diverticulitis (avoidance)
Conversion to (or occurrence of) complicated diverticulitis
Surgery for diverticulitis, including colostomy (avoidance)
Hospitalization (or re-hospitalization) for diverticulitis (avoidance)
Quality of life
Functional outcomes
Resource use
Missed work/school
Mortality - Diverticulitis-related
Mortality - All-cause (non-AE)
Recurrence of diverticulitis
Opioid misuse
AE - Infection requiring Abx (CD II)
AE - Clostridioides difficile (C diff) infection
AE - Antibiotic resistance
AE - Bleed requiring transfusion (CD II)
AE - Return to OR or unplanned procedure (CD III)
AE - Allergic reaction (major)
AE - Serious (SAE)
AE - Unplanned ICU admission (CD IV)
AE - Unplanned (re)hospitalization (CD IV)
AE - Stroke (CD IV)
AE - Major cardiac event (CD IV)
AE - Major pulmonary event (CD IV)
AE - Sepsis (CD IV)
AE - 30 day mortality (post-surgical, CD V)
AE - AE resulting in treatment discontinuation
AE - DVT


Outcome Details

Question 1

Quality Dimension Fields

Quality Dimension Value Notes
Q14: Cochrane - Random sequence generation (selection bias): Selection bias (biased allocation to interventions) due to inadequate generation of a randomized sequence
Q15: Cochrane - Allocation concealment (selection bias): Selection bias (biased allocation to interventions) due to inadequate concealment of allocations prior to assignment
Q16: Cochrane - Blinding of participants (performance bias): Performance bias due to knowledge of the allocated interventions by participants during the study
Q17: Cochrane - Blinding of personnel/ care providers (performance bias): Performance bias due to knowledge of the allocated interventions by personnel/care providers during the study.
Q18: Cochrane - FOR OBJECTIVE OUTCOMES - Blinding of outcome assessor (detection bias): Detection bias due to knowledge of the allocated interventions by outcome assessors.
Q20: Cochrane - Incomplete outcome data (attrition bias): Attrition bias due to amount, nature or handling of incomplete outcome data
Q21: Cochrane - Selective Reporting (reporting bias): Reporting bias due to selective outcome reporting
Q22: Cochrane - Other Bias: Bias due to problems not covered elsewhere in the table. If yes, describe them in the Notes.
Q1: ROBINS-I 1.1 Is there potential for confounding of the effect of intervention in this study?
Q3: ROBINS-I 1.4. Did the authors use an appropriate analysis method that controlled for all the important confounding domains?
Q4: ROBINS-I 1.5. If Y/PY to 1.4: Were confounding domains that were controlled for measured validly and reliably by the variables available in this study?
Q5: ROBINS-I 1.6. Did the authors control for any post-intervention variables that could have been affected by the intervention?
Q6: ROBINS-I - Risk of bias judgement for BIAS DUE TO CONFOUNDING
Q7: ROBINS-I 2.1. Was selection of participants into the study (or into the analysis) based on participant characteristics observed after the start of intervention?
Q8: ROBINS-I 2.2. If Y/PY to 2.1: Were the post-intervention variables that influenced selection likely to be associated with intervention?
Q9: ROBINS-I 2.3 If Y/PY to 2.2: Were the post-intervention variables that influenced selection likely to be influenced by the outcome or a cause of the outcome?
Q10: ROBINS-I 2.4. Do start of follow-up and start of intervention coincide for most participants?
Q12: ROBINS-I 2.5. If Y/PY to 2.2 and 2.3, or N/PN to 2.4: Were adjustment techniques used that are likely to correct for the presence of selection biases?
Q13: ROBINS-I - Risk of bias judgement for BIAS IN SELECTION OF PARTICIPANTS INTO THE STUDY
Q2: Did the study divide the follow up time of each individual participant into the different interventions?
Q11: Did the start and follow up calendar years coincide for most participants in the study?
Q19: Cochrane - FOR SUBJECTIVE OUTCOMES - Blinding of outcome assessor (detection bias): Detection bias due to knowledge of the allocated interventions by outcome assessors.
Q23: NHLBI - Were eligibility/selection criteria for the study population prespecified and clearly described?
Q24: NHLBI - Was the test/service/intervention clearly described and delivered consistently across the study population?
Q25: NHLBI - Were the outcome measures prespecified, clearly defined, valid, reliable, and assessed consistently across all study participants?

Overall Rating of Study:
Quality Guideline Used in Assessment: