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Table 1 Covariates included in the Cox proportionate hazards analysis of time to persistent confirmed autoantibody positivity

From: Analgesic antipyretic use among young children in the TEDDY study: no association with islet autoimmunity

Fixed Covariates

Hazard Ratio (95% CI)

Wald test p-valuea

First-Degree Relative (Ref = No)

2.51 (2.06, 3.30)

<0.001

HLA (Ref = DR3/DR4)

 

DR4/DR4

0.69 (0.54, 0.88)

0.003

 

DR4/DR8

0.70 (0.54, 0.91)

0.008

 

DR3/DR3

0.46 (0.35, 0.60)

<0.001

 

All Others

0.46 (0.29, 0.72)

<0.001

Gender (Ref = male)

0.77 (0.65, 0.92)

0.003

SNP

 

RS1004446_a

0.84 (0.74, 0.96)

0.010

 

RS10517086_a

1.14 (1.00, 1.31)

0.050

 

RS12708716_g

0.87 (0.76, 0.99)

0.034

 

RS2292239_a

1.24 (1.09, 1.41)

<0.001

 

RS2476601_a

1.55 (1.31, 1.83)

<0.001

 

RS2816316_c

1.07 (0.91, 1.25)

0.429

 

RS3184504_a

1.33 (1.17, 1.50)

<0.001

 

RS4948088_a

0.74 (0.53, 1.04)

0.086

Ever Breastfed (Ref = No)

1.96 (1.01, 3.81)

0.042

Probiotics <3 Mo Age (Ref = No)

0.72 (0.55, 0.94)

0.015

Time Dependent Covariates

  

Cumulative Number of Infections

1.02 (0.99, 1.03)

0.407

Cumulative Weeks Analgesic Use

1.02 (0.99, 1.04)

0.269

  1. Number of persistent confirmed cases = 511
  2. aHo: Hazard Ratio = 1