Table 3 Adjusted prevalence ratios and 95% confidence intervals (CI) for factors associated with the reporting of COVID-19 testing and receiving a positive result, Brazil

  Older adults only

0.921

(0.83, 1.02)

0.902*

(0.81, 1.00)

1.021

(0.81, 1.29)

1.012

(0.80, 1.29)

  Multigenerational

0.821***

(0.73, 0.92)

0.799***

(0.71, 0.90)

1.522**

(1.16, 2.00)

1.506**

(1.14, 2.00)

  Skipped generation

0.743**

(0.61, 0.90)

0.721**

(0.59, 0.88)

1.634*

(1.06, 2.51)

1.587*

(1.02, 2.48)

 Adults and older adults

0.955

(0.87, 1.05)

0.930

(0.84, 1.02)

1.292*

(1.03, 1.63)

1.265

(1.00, 1.60)

  Symptoms

1.734***

(1.68, 1.79)

1.472***

(1.37, 1.58)

2.357***

(2.21, 2.52)

2.133***

(1.82, 2.50)

  Symptoms*older adults only

1.164**

(1.06, 1.28)

1.064

(0.87, 1.30)

  Symptoms*Multigenerational

1.243***

(1.12, 1.38)

1.078

(0.87, 1.33)

  Symptoms*Skipped generation

1.281*

(1.05, 1.56)

1.184

(0.89, 1.58)

  Symptoms*Adults and older adults

1.250***

(1.15, 1.36)

1.170

(0.98, 1.40)

 Age (in years)

0.984***

(0.98, 0.99)

0.984***

(0.98, 0.99)

0.976***

(0.97, 0.99)

0.976***

(0.97, 0.99)

 Female (versus male)

0.911**

(0.85, 0.97)

0.911**

(0.85, 0.97)

0.882

(0.76, 1.03)

0.882

(0.76, 1.03)

  Black

0.946

(0.84, 1.07)

0.946

(0.84, 1.07)

0.931

(0.71, 1.23)

0.931

(0.71, 1.23)

  Brown

0.925*

(0.86, 0.99)

0.925*

(0.86, 0.99)

1.129

(0.96, 1.33)

1.129

(0.96, 1.33)

  Indigenous

1.780**

(1.19, 2.67)

1.778**

(1.18, 2.67)

1.783

(0.49, 6.48)

1.784

(0.49, 6.48)

 Other

0.938

(0.69, 1.27)

0.938

(0.69, 1.27)

0.503

(0.23, 1.11)

0.503

(0.23, 1.11)

  Less than high school

1.081

(0.98, 1.20)

1.080

(0.97, 1.20)

1.201

(0.97, 1.48)

1.200

(0.97, 1.48)

  High school complete

1.576***

(1.40, 1.78)

1.574***

(1.40, 1.77)

1.948***

(1.49, 2.54)

1.945***

(1.49, 2.54)

  College or more

2.558***

(2.26, 2.89)

2.556***

(2.26, 2.89)

2.536***

(1.85, 3.47)

2.534***

(1.85, 3.47)

  2

1.033

(0.97, 1.09)

1.033

(0.97, 1.09)

1.088

(0.96, 1.23)

1.087

(0.96, 1.23)

  3

1.179***

(1.10, 1.26)

1.178***

(1.10, 1.26)

1.264**

(1.09, 1.46)

1.264**

(1.09, 1.46)

  4

1.469***

(1.37, 1.58)

1.469***

(1.37, 1.58)

1.558***

(1.32, 1.83)

1.554***

(1.32, 1.83)

  Northeast

0.825***

(0.74, 0.92)

0.825***

(0.74, 0.92)

0.369***

(0.26, 0.51)

0.369***

(0.26, 0.51)

  Southeast

0.442***

(0.39, 0.49)

0.442***

(0.39, 0.49)

0.123***

(0.09, 0.17)

0.123***

(0.09, 0.17)

  South

0.348***

(0.31, 0.40)

0.349***

(0.31, 0.40)

0.0846***

(0.06, 0.12)

0.0847***

(0.06, 0.12)

  Center West

0.948

(0.84, 1.07)

0.948

(0.84, 1.07)

0.479***

(0.32, 0.71)

0.479***

(0.32, 0.71)

 Urban (versus rural)

2.458***

(2.22, 2.73)

2.457***

(2.22, 2.72)

2.333***

(1.93, 2.82)

2.332***

(1.93, 2.82)

  Diabetes

1.214***

(1.14, 1.29)

1.213***

(1.14, 1.29)

1.478***

(1.28, 1.71)

1.479***

(1.28, 1.71)

  Hypertension

1.106***

(1.05, 1.16)

1.106***

(1.05, 1.16)

1.319***

(1.18, 1.47)

1.320***

(1.18, 1.47)

  Heart disease

1.310***

(1.22, 1.40)

1.310***

(1.23, 1.40)

1.229*

(1.04, 1.45)

1.231*

(1.04, 1.45)

  Asthma

1.503***

(1.39, 1.62)

1.505***

(1.39, 1.63)

1.479***

(1.21, 1.81)

1.484***

(1.22, 1.81)

  Cancer

1.219***

(1.10, 1.36)

1.221***

(1.10, 1.36)

1.298

(0.99, 1.70)

1.302

(0.99, 1.71)

  Depression

1.211***

(1.11, 1.32)

1.211***

(1.11, 1.32)

1.404**

(1.15, 1.72)

1.404**

(1.15, 1.72)

 Proxy respondent (versus no)

0.945**

(0.91, 0.98)

0.946**

(0.91, 0.98)

1.042

(0.95, 1.14)

1.040

(0.95, 1.14)

  August

1.408***

(1.37, 1.45)

1.409***

(1.37, 1.45)

1.584***

(1.48, 1.69)

1.585***

(1.48, 1.69)

  September

1.795***

(1.74, 1.85)

1.797***

(1.74, 1.85)

2.121***

(1.98, 2.27)

2.124***

(1.98, 2.28)

  October

2.167***

(2.10, 2.24)

2.169***

(2.10, 2.24)

2.579***

(2.40, 2.77)

2.581***

(2.40, 2.77)

  November

2.450***

(2.37, 2.53)

2.453***

(2.37, 2.53)

2.909***

(2.70, 3.13)

2.912***

(2.70, 3.14)

 Constant

0.001***

(0.00, 0.01)

0.007***

(0.00, 0.01)

0.000***

(0.00, 0.00)

0.001***

(0.00, 0.00)

 Random ID

6.577

(6.44, 6.72)

6.571

(6.43, 6.71)

10.651

(10.25, 11.07)

10.648

(10.25, 11.07)