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Table 1—

Statistics for selected variables by probands’ status

Random probands
Duration-based probands
ProbandsNonprobandsProbandsNonprobands
Discrete variables     
    Sex     
        Male 109 (38.7) 149 (39.8) 117 (41.5) 141 (37.7) 
        Female 173 (61.3) 225 (60.2) 165 (58.5) 233 (62.3) 
    Retinopathy     
        No 89 (31.6) 110 (29.4) 48 (17.0) 151 (40.4)* 
        Yes 193 (68.4) 264 (70.6) 234 (83.0) 223 (59.6) 
Continuous variables     
    Age (years) 58.2 ± 10.2 59.0 ± 9.7 58.9 ± 9.7 58.5 ± 10.1 
    BMI (kg/m231.4 ± 6.2 31.1 ± 6.2 30.6 ± 5.6 31.8 ± 6.6* 
    Glucose (mg/dl) 191.9 ± 69.8 186.2 ± 67.5 194.7 ± 73.3 184.2 ± 64.4 
    HbA1c (%) 10.8 ± 3.8 10.2 ± 4.1 10.6 ± 4.3 10.4 ± 3.7 
    Age at diagnosis (years) 49.2 ± 10.5 50.2 ± 10.7 45.6 ± 9.7 52.9 ± 10.2* 
    Type 2 diabetes duration (years) 9.1 ± 7.4 8.9 ± 7.2 13.3 ± 7.8 5.7 ± 4.7* 
    Retinopathy score 31.5 ± 19.7 31.1 ± 18.4 37.6 ± 19.0 26.5 ± 17.5* 
Random probands
Duration-based probands
ProbandsNonprobandsProbandsNonprobands
Discrete variables     
    Sex     
        Male 109 (38.7) 149 (39.8) 117 (41.5) 141 (37.7) 
        Female 173 (61.3) 225 (60.2) 165 (58.5) 233 (62.3) 
    Retinopathy     
        No 89 (31.6) 110 (29.4) 48 (17.0) 151 (40.4)* 
        Yes 193 (68.4) 264 (70.6) 234 (83.0) 223 (59.6) 
Continuous variables     
    Age (years) 58.2 ± 10.2 59.0 ± 9.7 58.9 ± 9.7 58.5 ± 10.1 
    BMI (kg/m231.4 ± 6.2 31.1 ± 6.2 30.6 ± 5.6 31.8 ± 6.6* 
    Glucose (mg/dl) 191.9 ± 69.8 186.2 ± 67.5 194.7 ± 73.3 184.2 ± 64.4 
    HbA1c (%) 10.8 ± 3.8 10.2 ± 4.1 10.6 ± 4.3 10.4 ± 3.7 
    Age at diagnosis (years) 49.2 ± 10.5 50.2 ± 10.7 45.6 ± 9.7 52.9 ± 10.2* 
    Type 2 diabetes duration (years) 9.1 ± 7.4 8.9 ± 7.2 13.3 ± 7.8 5.7 ± 4.7* 
    Retinopathy score 31.5 ± 19.7 31.1 ± 18.4 37.6 ± 19.0 26.5 ± 17.5* 

Data are n (%).

*

P < 0.05;

P < 0.10 for probands vs. nonprobands.

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