Higher Sinus Inflammation Predicts Very Slightly Higher Headache Severity for Population
Contents
Mike Sinn
PRINCIPAL INVESTIGATOR
Mike Sinn

Variables

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Sinus Inflammation 830
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Headache Severity 1498

Categories

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Symptoms 13336
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Symptoms 13336

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Your Data

Tags

Medium Confidence
Very Weak Effect Size
Positive Relationship
Population Study
cause image gauge image effect image
Participants reported a 28.2% average increase in Headache Severity following above average Sinus Inflammation.
Abstract

Abstract

Headache Severity was generally 5.3% higher than average after 2 out of 5 of Sinus Inflammation per 24 hours.

Aggregated data from 2 study participants suggests with a MEDIUM degree of confidence (p=0.265, 95% CI -0.032 to 0.203) that Sinus Inflammation has a very weakly positive predictive relationship (R=0.0855) with Headache Severity.

The highest quartile of Headache Severity measurements were observed following an average 2.15 out of 5 Sinus Inflammation.

The lowest quartile of Headache Severity measurements were observed following an average 2.03 out of 5 of Sinus Inflammation.

After an onset delay of 0 seconds, Headache Severity is typically 0% lower than average over the 24 hours following around 2.03 out of 5 Sinus Inflammation.

Objective

Objective

The objective of this study is to determine the nature of the relationship (if any) between Sinus Inflammation and Headache Severity. Additionally, we attempt to determine the Sinus Inflammation values most likely to produce optimal Headache Severity values.
Participant Instructions

Participant Instructions

Manual Recording Option

A Create a reminder for Sinus Inflammation here and record it daily by enabling notifications or using A the reminder inbox here .


Manual Recording Option

A Create a reminder for Headache Severity here and record it daily by enabling notifications or using A the reminder inbox here .

Design

Design

This study is based on data donated by 2 participants. Thus, the study design is equivalent to the aggregation of 2 separate n=1 observational natural experiments.

Data Analysis

Data Analysis

Sinus Inflammation Pre-Processing

Sinus Inflammation measurement values below 1 out of 5 were assumed erroneous and removed. Sinus Inflammation measurement values above 5 out of 5 were assumed erroneous and removed. No missing data filling value was defined for Sinus Inflammation so any gaps in data were just not analyzed instead of assuming zero values for those times.

Headache Severity Pre-Processing

Headache Severity measurement values below 1 out of 5 were assumed erroneous and removed. Headache Severity measurement values above 5 out of 5 were assumed erroneous and removed. No missing data filling value was defined for Headache Severity so any gaps in data were just not analyzed instead of assuming zero values for those times.

Predictive Analytics

It was assumed that 0 seconds would pass before a change in Sinus Inflammation would produce an observable change in Headache Severity.

It was assumed that Sinus Inflammation could produce an observable change in Headache Severity for as much as 24 hours after the stimulus event.

Statistical Significance

Statistical Significance

Using a two-tailed t-test with alpha = 0.05, it was determined that the change in Headache Severity is not statistically significant at a 95% confidence interval. This suggests that the Sinus Inflammation value does not have a significant influence on the Headache Severity value.

After treatment, a 28.2% increase (0.0644 out of 5) from the mean baseline 1.22 out of 5 was observed. The relative standard deviation at baseline was 44.5%. The observed change was 0.11875 times the standard deviation.

A common rule of thumb considers a change greater than twice the baseline standard deviation on two separate pre-post experiments may be considered significant. This occurrence would have only a 5% likelihood of resulting from random fluctuation (a p-value < 0.05).

Data Sources

Data Sources

Sinus Inflammation data was primarily collected using QuantiModo. QuantiModo allows you to easily track mood, symptoms, or any outcome you want to optimize in a fraction of a second. You can also import your data from over 30 other apps and devices. QuantiModo then analyzes your data to identify which hidden factors are most likely to be influencing your mood or symptoms.

Headache Severity data was primarily collected using QuantiModo. QuantiModo allows you to easily track mood, symptoms, or any outcome you want to optimize in a fraction of a second. You can also import your data from over 30 other apps and devices. QuantiModo then analyzes your data to identify which hidden factors are most likely to be influencing your mood or symptoms.

Limitations

Limitations

As with any human experiment, it was impossible to control for all potentially confounding variables. Correlation does not necessarily imply causation. We can never know for sure if one factor is definitely the cause of an outcome. However, lack of correlation definitely implies the lack of a causal relationship. Hence, we can with great confidence rule out non-existent relationships. For instance, if we discover no relationship between mood and an antidepressant this information is just as or even more valuable than the discovery that there is a relationship.

We can also take advantage of several characteristics of time series data from many subjects to infer the likelihood of a causal relationship if we do find a correlational relationship. The criteria for causation are a group of minimal conditions necessary to provide adequate evidence of a causal relationship between an incidence and a possible consequence.

Criteria For Causal Inference

Strength (A.K.A. Effect Size)

A small association does not mean that there is not a causal effect, though the larger the association, the more likely that it is causal. There is a very weakly positive (R = 0.0855) relationship between Sinus Inflammation and Headache Severity.

Consistency (A.K.A. Reproducibility)

Consistent findings observed by different persons in different places with different samples strengthens the likelihood of an effect. Furthermore, in accordance with the law of large numbers (LLN), the predictive power and accuracy of these results will continually grow over time. 389 paired data points were used in this analysis. Assuming that the relationship is merely coincidental, as the participant independently modifies their Sinus Inflammation values, the observed strength of the relationship will decline until it is below the threshold of significance. To it another way, in the case that we do find a spurious correlation, suggesting that banana intake improves mood for instance, one will likely increase their banana intake. Due to the fact that this correlation is spurious, it is unlikely that you will see a continued and persistent corresponding increase in mood. So over time, the spurious correlation will naturally dissipate.

Specificity

Causation is likely if a very specific population at a specific site and disease with no other likely explanation. The more specific an association between a factor and an effect is, the bigger the probability of a causal relationship.

Temporality

The effect has to occur after the cause (and if there is an expected delay between the cause and expected effect, then the effect must occur after that delay). The confidence in a causal relationship is bolstered by the fact that time-precedence was taken into account in all calculations.

Biological Gradient

Greater exposure should generally lead to greater incidence of the effect. However, in some cases, the mere presence of the factor can trigger the effect. In other cases, an inverse proportion is observed: greater exposure leads to lower incidence.

Plausibility

A plausible bio-chemical mechanism between cause and effect is critical. This is where human brains excel.

Based on our responses so far,

0 humans feel that there is a plausible mechanism of action for a relationship between Sinus Inflammation and Headache Severity.

0 humans feel that any relationship observed between Sinus Inflammation and Headache Severity is coincidental.

Coherence

Coherence between epidemiological and laboratory findings increases the likelihood of an effect. It will be very enlightening to aggregate this data with the data from other participants with similar genetic, diseasomic, environmentomic, and demographic profiles.

Experiment

All of human life can be considered a natural experiment. Occasionally, it is possible to appeal to experimental evidence.

Analogy

The effect of similar factors may be considered.

Plausibility

Plausibility

A plausible bio-chemical mechanism between cause and effect is critical. This is where human brains excel. Based on our responses so far, 0 humans feel that there is a plausible mechanism of action and 0 feel that any relationship observed between Sinus Inflammation and Headache Severity is coincidental.

Relationship Statistics

Property Value
Cause Variable Name Sinus Inflammation
Effect Variable Name Headache Severity
Sinn Predictive Coefficient 0.015498520957576
Confidence Level MEDIUM
Confidence Interval 0.11703
Forward Pearson Predictive Coefficient 0.0855
Critical T Value 1.646
Average Sinus Inflammation Over Previous 24 hours Before ABOVE Average Headache Severity 2.15 out of 5
Average Sinus Inflammation Over Previous 24 hours Before BELOW Average Headache Severity 2.03 out of 5
Duration of Action 24 hours
Effect Size very weakly positive
Number of Paired Measurements 389
Optimal Pearson Product 0.018079404994679
P Value 0.26463
Statistical Significance 0.9984
Strength of Relationship 0.11703
Study Type population
Analysis Performed At 2021-08-30
Number of Participants 2

Sinus Inflammation Info

Property Value
Variable Name Sinus Inflammation
Aggregation Method MEAN
Analysis Performed At 2020-09-14
Duration of Action 24 hours
Kurtosis 2.5931016883792
Maximum Allowed Value 5 out of 5
Mean 2.0529804075235 out of 5
Median 2 out of 5
Minimum Allowed Value 1 out of 5
Number of Aggregate Predictors 763
Number of Aggregate Outcomes 67
Number of Measurements 550
Number of Measurements (including those generated by tagged, joined, or child variables) 550
Public true
Onset Delay 0 seconds
Standard Deviation 0.90303472684476
Unit 1 to 5 Rating
User Variables 2
UPC 739934839591
Variable Category Symptoms
Variable ID 5545331
Variance 0.81668655198429

Headache Severity Info

Property Value
Variable Name Headache Severity
Aggregation Method MEAN
Analysis Performed At 2021-04-22
Duration of Action 24 hours
Kurtosis 2.6188505753424
Maximum Allowed Value 5 out of 5
Mean 2.7185156626506 out of 5
Median 2.6872903614458 out of 5
Minimum Allowed Value 1 out of 5
Number of Aggregate Predictors 1317
Number of Aggregate Outcomes 181
Number of Measurements 5408
Number of Measurements (including those generated by tagged, joined, or child variables) 5408
Public true
Onset Delay 0 seconds
Standard Deviation 0.41171668487351
Unit 1 to 5 Rating
User Variables 351
UPC 0
Variable Category Symptoms
Variable ID 87323
Variance 0.48864093917025