Evidence map›Paper›PMID 32885112›Full record

ArticleGeoHealth2020

Using Climate to Explain and Predict West Nile Virus Risk in Nebraska.

Kelly Helm Smith, Andrew J Tyre, Jeff Hamik, Michael J Hayes, Yuzhen Zhou, Li Dai

Abstract read
In one paragraph

Article in GeoHealth, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Kelly Helm SmithNational Drought Mitigation Center, School of Natural Resources University of Nebraska-Lincoln Lincoln NE USA.ORCID https://orcid.org/0000-0001-5229-984X
Andrew J TyreSchool of Natural Resources University of Nebraska-Lincoln Lincoln NE USA.
Jeff HamikDepartment of Educational Psychology University of Nebraska-Lincoln; Nebraska Department of Health and Human Services Lincoln NE USA.
Michael J HayesSchool of Natural Resources University of Nebraska-Lincoln Lincoln NE USA.ORCID https://orcid.org/0000-0001-5006-166X
Yuzhen ZhouDepartment of Statistics University of Nebraska-Lincoln Lincoln NE USA.
Li DaiDepartment of Statistics University of Nebraska-Lincoln Lincoln NE USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We used monthly precipitation and temperature data to give early warning of years with higher West Nile Virus (WNV) risk in Nebraska. We used generalized additive models with a negative binomial distribution and smoothing curves to identify combinations of extremes and timing that had the most influence, experimenting with all combinations of temperature and drought data, lagged by 12, 18, 24, 30, and 36 months. We fit models on data from 2002 through 2011, used Akaike's Information Criterion (AIC) to select the best-fitting model, and used 2012 as out-of-sample data for prediction, and repeated this process for each successive year, ending with fitting models on 2002-2017 data and using 2018 for out-of-sample prediction. We found that warm temperatures and a dry year preceded by a wet year were the strongest predictors of cases of WNV. Our models did significantly better than random chance and better than an annual persistence naïve model at predicting which counties would have cases. Exploring different scenarios, the model predicted that without drought, there would have been 26% fewer cases of WNV in Nebraska through 2018; without warm temperatures, 29% fewer; and with neither drought nor warmth, 45% fewer. This method for assessing the influence of different combinations of extremes at different time intervals is likely applicable to diseases other than West Nile, and to other annual outcome variables such as crop yield.

Indexed as

disease vectordroughtecologic modelingpredictionWest Nile Virus

Identifiers

PMID32885112
PMCPMC7453133

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.