Fecal Egg Count Reduction Test Calculator
Explicit paired-group pooled mean FECR=100×(1−postsum/presum), not mean of individual percentages, control-adjusted FECRT, resistance diagnosis or confidence interval. Species/parasite/count method, sampling interval and qualified interpretation external.
Description
A fecal egg count reduction comparison depends on matched pretreatment and post-treatment observations.
A fecal egg count reduction comparison depends on matched pretreatment and post-treatment observations.1
A pooled reduction uses summed counts rather than averaging the animals' individual percentages.
When to use Fecal Egg Count Reduction Test Calculator
Use this tool to calculate or review the supplied observations under the stated rules. Establish the animal, measurement protocol, units and independently applicable veterinary prescription or reference.
How to use Fecal Egg Count Reduction Test Calculator and understand its results
- Establish the animal, measurement protocol, units and independently applicable veterinary prescription or reference.
- Enter independentlyMatchedPretreatmentEggsPerGram, independentlyMatchedPosttreatmentEggsPerGram, using the field meanings and rules below, then run the tool.
- Read result.observedPooledFecalEggCountReductionPercent. Use the units and subtraction order below to interpret each value; retain negative differences where returned.
- Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| independentlyMatchedPretreatmentEggsPerGram | Independently matched pretreatment eggs per gram | list of number | Required |
| independentlyMatchedPosttreatmentEggsPerGram | Independently matched posttreatment eggs per gram | list of number | Required |
Supply nonempty aligned nonnegative pretreatment and post-treatment counts. The summed pretreatment count must be positive; counts are not required to be integers. Compute reduction from the two pooled sums. A higher post-treatment total produces a negative reduction. No individual-percent average, control adjustment or confidence interval is calculated.
pooledReductionPercent=100×(1−ΣpostTreatmentCounts/ΣpreTreatmentCounts) Use the matching field units and the exact boundary, ordering and reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Qualified observation, conditional calculation or reference | object |
| result.observedPooledFecalEggCountReductionPercent | One hundred times one minus post/pre pooled count ratio; may be negative. | number |
{
"input": {
"independentlyMatchedPretreatmentEggsPerGram": [
100,
200
],
"independentlyMatchedPosttreatmentEggsPerGram": [
10,
20
]
},
"output": {
"result": {
"observedPooledFecalEggCountReductionPercent": 90
}
}
}Limitations and assumptions
The patient context, observations and applicability of any reference or prescription must be independently established. This result supplies no diagnosis, default dose, treatment selection or assessment of clinical suitability.
Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Lists and matrices must be dense, without missing cells. Numeric lists allow at most 10000 entries, subject to the narrower lengths and code rules above. Extremely large composite outputs are rejected.
Alternative or Complementary methods
For a related step, use Deworming Interval Fecal Egg Count Tool: Deworming intervals based on fecal evidence need species, parasite, assay and veterinary-plan context. For a complementary comparison, use Tick Prevention Dosing Interval Lookup: Tick-prevention intervals depend on the specific product and applicable veterinary plan.
References
Similar or alternative tools
- Deworming Interval Fecal Egg Count Tool
Deworming intervals based on fecal evidence need species, parasite, assay and veterinary-plan context.
- Tick Prevention Dosing Interval Lookup
Tick-prevention intervals depend on the specific product and applicable veterinary plan.