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. Author manuscript; available in PMC: 2023 Jun 19.
Published in final edited form as: J Occup Environ Med. 2022 Jun 21;64(9):748–753. doi: 10.1097/JOM.0000000000002569

TABLE 2.

Association Between Selected Characteristics and Retinal Vessel Diameters, BCOPS 2010–2014

CRAE, μm
CRVE, μm
Correlation P Correlation P

Age, yrs −0.20 0.0011 −0.09  0.1478
Years of service −0.25 <0.0001 −0.06  0.3693
Alcohol intake, drinks/wk −0.09  0.1448 −0.01  0.8252
Physical activity, hrs/wk 0.01  0.8321 −0.06  0.3379
Log of C-reactive protein 0.05  0.4397 0.22  0.0004
Log of interleukin 6 0.08  0.2218 0.32 <0.0001
Fibrinogen 0.02  0.7078 0.15  0.0171
Log of tumor necrosis factor α −0.03  0.5908 0.07  0.2663
Sleep duration (PSQI), hrs/24-hr 0.03  0.6578 0.01  0.8429

Mean (SD) P Mean (SD) P

Sex 0.2928  0.4215
 Women 156.7 (15.3) 224.7 (21.8)
 Men 154.7 (12.6) 222.4 (18.9)
Race/ethnicity 0.1099  0.0004
 White/Hispanic 154.5 (13.3) 220.8 (18.9)
 African American 157.9 (13.7) 231.7(20.8)
Education 0.7535  0.5282
 ≤HS/GED 156.7 (13.7) 227.5 (20.7)
 <4 yrs college 154.7 (14.8) 222.7 (21.3)
 ≥4 yrs college 155.6 (11.5) 222.6 (17.5)
Smoking status 0.0281 0.2154
 Current 158.8 (16.1) 227.4 (20.4)
 Former 152.0 (13.4) 220.2 (20.2)
 Never 156.2 (12.7) 223.8 (19.4)
Sleep quality 0.4657 0.8100
 Good 156.4 (12.1) 222.3 (19.7)
 Poor 154.9 (14.0) 223.0 (20.2)
Rank 0.2835 0.4627
 Patrol officer 155.9 (13.4) 224.2 (20.7)
 Sergeant/Lieut/Capt 152.5 (11.3) 220.1 (15.9)
 Det/Exec/other 156.0 (15.1) 223.1 (20.8)
Shiftwork (entire career) 0.1824 0.3733
 Day 154.6 (14.7) 223.4 (21.6)
 Afternoon 154.3 (13.0) 220.9 (18.8)
 Night 158.4 (10.6) 225.9(16.8)
Hypertension medication 0.0722 0.6137
 No 156.1 (13.4) 223.4 (19.2)
 Yes 152.5 (13.3) 221.9(21.6)
Lipids medication 0.5557  0.6312
 No 155.5 (13.8) 222.7 (19.5)
 Yes 154.3 (12.0) 224.2 (20.9)