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Volume 29, Number 8—August 2023
Research

Omicron COVID-19 Case Estimates Based on Previous SARS-CoV-2 Wastewater Load, Regional Municipality of Peel, Ontario, Canada

Lydia Cheng1, Hadi A. Dhiyebi1, Monali VariaComments to Author , Kyle Atanas, Nivetha Srikanthan, Samina Hayat, Heather Ikert, Meghan Fuzzen, Carly Sing-Judge, Yash Badlani, Eli Zeeb, Leslie M. Bragg, Robert Delatolla, John P. Giesy, Elaine Gilliland, and Mark R. Servos
Author affiliations: Regional Municipality of Peel, Mississauga, Ontario, Canada (L. Cheng, M. Varia, K. Atanas, E. Gilliland); University of Waterloo, Waterloo, Ontario, Canada (H.A. Dhiyebi, N. Srikanthan, S. Hayat, H. Ikert, M. Fuzzen, C. Sing-Judge, Y. Badlani, E. Zeeb, L.M. Bragg, M.R. Servos); University of Ottawa, Ottawa, Ontario, Canada (R. Delatolla); University of Saskatchewan, Saskatoon, Saskatchewan, Canada (J.P. Giesy); Baylor University, Waco, Texas, USA (J.P. Giesy)

Main Article

Table 3

Pearson correlation coefficients (r) between ln(x + 1) transformed daily SARS-CoV-2 load in wastewater and ln(x + 1) transformed hospitalizations among COVID-19 patients, by epidemic wave, at various lags, Peel region Regional Municipality of Peel, Ontario, Canada*

Lag, d Epidemic waves
2 3 4 5 6 2–6
1
 0.6294
 0.7920
 0.5681†
 0.8841
 0.4827
 0.8110
2
 0.5772
 0.7617
 NS
 0.8968
 0.5602
 0.7967
3
 0.6388
 0.7608
 0.3798
 0.8613
 0.5009
 0.7889
4
 0.5600
 0.8679†
 NS
 0.8781
 0.5117
 0.8189†
5
 0.5666
 0.7513
 NS
 0.8618
 0.5008
 0.7621
6
 0.6121
 0.8024
 NS
 0.8913
 0.4187
 0.8062
7
 0.6531†
 0.7860
 NS
 0.9161†
 0.5695
 0.8120
8
 0.6163
 0.7625
 0.4292
 0.8711
 0.5767†
 0.8009
9
 0.6254
 0.8036
 0.3733
 0.8649
 0.4673
 0.8163
10
 0.5249
 0.7694
 0.3894
 0.8498
 0.4713
 0.7804
11
 0.5955
 0.8015
 0.1440
 0.7630
 0.4292
 0.7853
12
 0.5333
 0.7351
 0.2552
 0.7957
 0.4124
 0.7608
13
 0.6369
 0.7758
 0.2907
 0.7420
 0.3114
 0.7770
14 0.5650 0.7605 0.1717 0.7474 0.3976 0.7525

*Colors indicate strength of association: gray, weak (r<0.4); yellow, moderate (0.4≤r<0.7); green, strong (r>0.7). NS, not significant (p>0.05). †Largest r per wave.

Main Article

1These first authors contributed equally to this article.

Page created: June 22, 2023
Page updated: July 19, 2023
Page reviewed: July 19, 2023
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