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Table 3 Results from the stage 1 model for emergency room visits for illnesses; p represents the p-value. Each model considered a constant sample size of 1460

From: Acute health effects associated with satellite-determined cyanobacterial blooms in a drinking water source in Massachusetts

Types of Illnesses Variables Mean Estimate Standard Error P
Gastrointestinal illness Visit count on the previous day 0.003 0.000 < 0.001
Monday −0.022 0.010 0.032
Tuesday 0.030 0.010 0.002
Wednesday 0.115 0.010 < 0.001
Thursday 0.047 0.010 < 0.001
Friday 0.037 0.010 < 0.001
O3 −0.619 0.314 0.049
Average mean temperature 0.005 4.00*10−4 < 0.001
Index of days 9.73*10−5 7.68*10−6 < 0.001
Respiratory illness Visit count on the previous day 0.005 9.83*10−6 < 0.001
Tuesday −0.067 0.009 < 0.001
Wednesday −0.092 0.00932 < 0.001
Thursday −0.111 0.00916 < 0.001
Friday −0.099 0.00934 < 0.001
Saturday −0.030 0.00923 0.001
School days 0.167 0.00855 < 0.001
Holidays −0.138 0.01624 < 0.001
Precipitation −0.001 3.00*10−4 0.004
Index of days −1.73*10−6 6.77*10−6 0.799
Dermal illness Visit count on the previous day 0.002 0.001 0.010
Tuesday −0.094 0.017 < 0.001
Wednesday − 0.137 0.017 < 0.001
Thursday −0.178 0.017 < 0.001
Friday −0.189 0.018 < 0.001
Holidays −0.183 0.033 < 0.001
O3 1.535 0.571 0.007
NO2 0.002 0.001 0.006
PM2.5 0.003 0.001 0.011
Precipitation −0.002 0.001 0.010
Average mean temperature 0.008 0.001 < 0.001
Index of days 8.10*10−5 1.73*10−5 < 0.001
  1. Note: Holidays and each weekday (e.g., Monday, Tuesday, etc) are binary variables (Yes = 1, No = 0). For holidays, the value 1 was used as the reference, for each weekday, the value 0 was used as the reference