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Table 3 Multivariable-adjusted hazard-ratios of COVID-19-Like Symptoms (CLS) according to covariate valuesa

From: Incidence and risk factors of COVID-19-like symptoms in the French general population during the lockdown period: a multi-cohort study

  Hazard-Ratio P-Value
Age group
  < 40 Reference  
 [40–50[ 0.80 (0.72; 0.90) < 0.0001
 [50–60[ 0.68 (0.60;0.76) < 0.0001
 [60–70[ 0.52 (0.44;0.62) < 0.0001
  > =70 0.34 (0.27; 0.44) < 0.0001
Gender
 Female reference  
 Male 0.99 (0.91; 1.07) 0.7267
Regions
 Ile-de-France 1.31 (1.19; 1.44) < 0.0001
 GrandEst 1.29 (1.14; 1.47) < 0.0001
 Other French metropolitan regions reference  
Living Area
 Rural Reference  
  < 20,000 inhab. 1.07 (0.93; 1.22) 0.3629
 20–000-100,000 inhab. 1.14 (1.00; 1.30) 0.0471
  > 100,000 inhab. 1.15 (1.02; 1.29) 0.0241
Household size and composition
 Nb persons (incl. participant)   
  1 Reference  
  2 0.95 (0.85; 1.06) 0.3405
  3 or + 1.00 (0.87; 1.16) 0.9603
 Nb children (< 18 yrs)   
  0 Reference  
  1 or + 1.28 (1.13; 1.45) 0.0001
BMI (kg/m2)
  < 18.5 1.04 (0.85; 1.27) 0.6916
 [18.5; 25[ Reference  
 [25; 30[(overweight) 1.17 (1.07; 1.27) 0.0005
  > =30 (obese) 1.41 (1.25; 1.58) < 0.0001
Professional activity before lockdown
 Student 1.01 (0.71; 1.44) 0.9620
 Working Reference  
 Looking for a job 1.05 (0.86; 1.27) 0.6618
 Retired 0.86 (0.72; 1.03) 0.1057
 Not working due to health conditions 1.30 (0.96; 1.77) 0.0894
 No professional activity (house wife or husband) 0.89 (0.68; 1.16) 0.3773
Essential job position
 Health care worker (Y vs N) 1.18 (1.00; 1.40) 0.0535
 Other essential job (Y vs N) 1.01 (0.90; 1.14) 0.8922
Chronic diseases (Y vs N)
 Asthma, COPD, other resp. diseases 1.41 (1.24; 1.60) < 0.0001
 Anxiety, depression 1.31 (1.08; 1.58) 0.0065
 Other 1.22 (1.08; 1.37) 0.0013
  1. a with stratification on the cohort. 6567 (6%) participants excluded from the multivariable model due to missing values including 190 with CLS; educational level was not significantly associated with CLS when included in the multivariable model (high school degree or undergraduate versus <high-school degree, P = 0.7743; graduate or doctorate versus <high-school degree, P = 0.6299), and was not kept in the final model due to missing information on this covariate in the E4NG2 cohort. To avoid overfitting Positive RT-PCR in another household member was not entered in the model. However, results were unchanged when this variable was entered (not shown)