Variable (N = 3,742,090)

Mean (SD)

OR

P Value

95%CI

Age (Years)

32.23 (24)

0.9979873

0.00

0.9977255

0.9982491

Race (Ref = White)

32%

1.00

Hispanic

32%

0.7828379

0.00

0.769971

0.7959199

Black

29%

1.270946

0.00

1.252308

1.289862

Other

7%

0.7847539

0.00

0.7630033

0.8071246

Gender (Ref = Female)

56%

1.00

Male

44%

1.172541

0.00

1.158398

1.186856

Day of the Week (Ref = Mon)

15%

Tue

15%

0.9614789

0.00

0.9410557

0.9823453

Wed

14%

0.918849

0.00

0.8988675

0.9392747

Thu

14%

0.9022155

0.00

0.8823848

0.922492

Fri

14%

0.8840275

0.00

0.8643642

0.9041382

Sat

14%

0.8627055

0.00

0.8434007

0.8824521

Sun

14%

0.9059972

0.00

0.8861664

0.9262716

Month (Ref = Jan)

9%

1.00

Feb

8%

0.9168744

0.00

0.8924079

0.9420117

Mar

9%

0.8325254

0.00

0.8101365

0.8555331

Apr

8%

0.8122498

0.00

0.7900357

0.8350885

May

9%

0.7087196

0.00

0.6887683

0.729249

Jun

8%

0.5534716

0.00

0.5362854

0.5712086

Jul

8%

0.5096805

0.00

0.4935233

0.5263667

Aug

8%

0.6116166

0.00

0.5933232

0.6304741

Sep

8%

0.8559826

0.00

0.8329931

0.8796066

Oct

8%

0.8094249

0.00

0.7873628

0.8321052

Nov

8%

0.9395736

0.00

0.9147279

0.9650942

Dec

8%

1.055295

0.00

1.028237

1.083064

Year (Ref = 2004)

8%

2005

8%

1.093982

0.00

1.059027

1.13009

2006

20%

1.218555

0.00

1.185814

1.252201

2007

12%

2.607205

0.00

2.538424

2.677849

2008

25%

1.088953

0.00

1.060098

1.118594

2009

27%

1.174778

0.00

1.144088

1.206291