Meta-analysisindependent cross-checkabstract checked★ key study I-SYS-105 in-depth review
Most sore throats get better on their own
Antibiotics for treatment of sore throat in children and adults.
Overview
Spinks A et al.. Cochrane Database Syst Rev 2021 · PMID 34881426 · DOI 10.1002/14651858.CD000023.pub5
82% of people without antibiotics were symptom-free within a week; antibiotics still prevented some complications.
Does the study support the specific claim? Partly · Methodological quality: high
Plain-language summary
Study explained simply
- What did the researchers want to find out?
Antibiotics for sore throat.
- How was the study done?
Cochrane review.
- How many people, animals or samples were studied?
29 trials.
- What was actually found?
Most heal alone; antibiotics help modestly.
- How large was the observed effect?
RR 0.50 at 1 week.
- What do the results mean in everyday life?
Self-healing is real for minor illness, not for everything.
- What are the study's limitations?
Old trials.
- What does it say about Elawady's specific claim?
Supports the kernel, not 'unlimited' healing.
- Do the results apply to Germany and Europe?
High.
- What can explicitly not be concluded from this study?
Serious diseases.
Scientific in-depth review
1. Full reference
- Authors
- Spinks A et al.
- Journal
- Cochrane Database Syst Rev
- Year
- 2021
- Identifier
- PMID 34881426 DOI 10.1002/14651858.CD000023.pub5
- Verification
- verified – PubMed efetch 2026-10-26 + Crossref
- Retracted
- no
- Corrections
- none
- Extent checked
- abstract only
- Conflicts of interest and funding
Author declarations in record (one author on Therapeutic Guidelines board)
2. Research question
Effects of antibiotics vs placebo/no treatment for sore throat
3. Study design and population
- Study design
- Meta-analysis – Cochrane systematic review and meta-analysis of RCTs
- Population
Children and adults with sore throat
- Country
International
- Period
Searches to April 2021
- Sample size
29 trials, 15,337 cases
- Inclusion and exclusion criteria
RCTs/quasi-RCTs with placebo or no-treatment control
4. Methods and endpoints
- Exposure / intervention
Antibiotics
- Comparator
Placebo or no treatment
- Endpoints
Symptoms day 3 and week 1; complications
- Statistical methods
Meta-analysis; GRADE
5. Actual results
- Results
82% of placebo/no-treatment participants were symptom-free by one week. Antibiotics reduced sore throat at day 3 (RR 0.70, 0.60-0.80) and week 1 (RR 0.50, 0.34-0.75; NNTB 18), reduced acute otitis media (Peto OR 0.21) and quinsy (Peto OR 0.16) and acute rheumatic fever (Peto OR 0.36, moderate certainty).
- Absolute risks
NNTB <6 at day 3; 18 at week 1
- Authors' conclusion
Antibiotics probably reduce symptoms and some complications; benefits are modest and must be weighed against resistance.
6. Strengths
- Cochrane methods
- GRADE
7. Weaknesses
- Most trials from the 1950s
8. Risk of bias
- Orienting tool
- AMSTAR 2
- Type of assessment
- simplified assessment (abstract only)
- Full formal assessment
- no
- Overall risk of bias
- low
- Rationale
Cochrane review.
9. Assessment of the statistical interpretation
Implied control risk at week 1 ~11% from NNT 18 and RR 0.50 (recalculated).
10. Relevance to the specific claim
Fair example of the correct kernel: many acute illnesses resolve on their own; but treatment still prevents some serious complications.
11. Independent contrary findings
12. Transferability to Germany and Europe
High.
13. Overall methodological judgement
Mixed: supports self-limitation of minor illness, not unlimited self-healing.
| Multidimensional assessment | |
|---|---|
| Authenticity of the source | verified |
| Methodological quality | high |
| Risk of bias | low |
| Precision of results | high |
| Directness | indirect |
| Reproducibility | replicated |
| Consistency with the overall evidence | consistent |
| Regional transferability | high |
| Adequacy of the interpretation (by the archive) | not applicable |
14. Open questions
15. Linked fact checks
- The body heals itself if left alone: the human body was created healthy and has an unlimited capacity for self-healing unless burdened by harmful inputs. – Studies with mixed or unclear results
- The system's life method is 'zero medicine': a life without any medicines at all. – Studies with mixed or unclear results