Abalkhail 1995 KSA.
| Methods | Case‐control study | |
| Participants | Cases: children aged < 3 years admitted to 20 primary HCs for primary diagnosis of diarrhoea with infectious origin, n = 319 (after excluding 3), mean age 13.1 months, 45.3% girls. Controls: children aged < 3 years with no history of hospitalization for diarrhoeal diseases, selected randomly from the nearest residential neighbours, n = 312 (after excluding 13). mean age 19.2 months, 52.6% girls. |
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| Interventions | Risk factor of interest:
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| Outcomes | Diarrhoea (≥ 3 soft liquid stools within 12 hours or a single soft or liquid stool with blood, pus, or mucous) | |
| Notes | Location: urban Makkah area, 20 primary HCs, Saudi Arabia Length of recruitment: 3 months (October 1994 to January 1995) Publication status: journal |
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| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Random sequence generation (selection bias) | Unclear risk | NA |
| Allocation concealment (selection bias) | Unclear risk | NA |
| Blinding of participants and personnel (performance bias) All outcomes | Unclear risk | NA |
| Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | NA |
| Incomplete outcome data (attrition bias) All outcomes | Unclear risk | NA |
| Selective reporting (reporting bias) | Unclear risk | NA |
| Other bias | Unclear risk | NA |
| Similarity of baseline outcome measurements | Unclear risk | NA |
| Similarity of baseline characteristics | Unclear risk | NA |
| Adequate allocation of intervention concealment during the study | Unclear risk | NA |
| Adequate protection against contamination | Unclear risk | NA |
| Confounders adequately adjusted for in analysis/design | Unclear risk | NA |
| Recruitment bias | Unclear risk | NA |
| Baseline imbalance | Unclear risk | NA |
| Loss of clusters | Unclear risk | NA |
| Incorrect analysis | Unclear risk | NA |