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. 2015 Dec 8;7(2):111–119. doi: 10.1016/j.shaw.2015.11.007

Table 5.

Adjusted mean values of all biomarkers by levels of shift work plus sleep quality, stratified by gender; BCOPS 2004–2009

Day + good sleep Day + poor sleep A/N + good sleep A/N + poor sleep p
Women n = 31 n = 37 n = 12 n = 19
 Triglycerides
 Model 1 56.7 (47.1–68.4) 70.3 (58.9–83.9) 60.9 (44.7–82.9) 80.4 (62.7–103.2) 0.116
 Model 2 56.6 (47.0–68.1) 66.2 (54.7–80.0) 57.7 (42.2–78.9) 74.9 (57.7–97.3) 0.291
 Total cholesterol
 Model 1 174.8 ± 6.1 203.1 ± 5.8 204.0 ± 10.2 200.9 ± 8.2 0.004
 Model 2 174.7 ± 6.2 201.2 ± 6.3 202.3 ± 10.4 198.7 ± 8.7 0.014
 HDL cholesterol
 Model 1 53.2 ± 2.7 59.6 ± 2.6 61.2 ± 4.5 61.6 ± 3.7 0.192
 Model 2 53.1 ± 2.7 57.5 ± 2.8 59.3 ± 4.5 59.0 ± 3.8 0.513
 LDL cholesterol
 Model 1 109.2 ± 5.5 125.6 ± 5.2 129.8 ± 9.1 122.5 ± 7.4 0.103
 Model 2 109.3 ± 5.5 127.0 ± 5.7 131.0 ± 9.3 124.1 ± 7.8 0.089
Men n = 45 n = 28 n = 74 n = 114
 Triglycerides
 Model 1 119.6 (98.4–145.5) 120.4 (93.1–155.8) 114.9 (98.8–133.6) 133.8 (118.3–151.4) 0.451
 Model 2 111.4 (91.7–135.2) 106.8 (82.6–138.0) 95.4 (80.7–112.9) 112.6 (98.1–129.2) 0.359
 Total cholesterol
 Model 1 200.6 ± 5.7 219.7 ± 7.5 202.0 ± 4.4 206.0 ± 3.6 0.168
 Model 2 197.5 ± 5.7 212.4 ± 7.6 192.7 ± 5.0 198.0 ± 4.1 0.170
 HDL cholesterol
 Model 1 43.0 ± 1.8 46.2 ± 2.4 42.1 ± 1.4 40.9 ± 1.1 0.244
 Model 2 42.7 ± 1.9 46.4 ± 2.4 41.5 ± 1.6 40.6 ± 1.3 0.207
 LDL cholesterol
 Model 1 127.8 ± 5.2 142.3 ± 6.8 132.7 ± 4.0 132.7 ± 3.3 0.389
 Model 2 126.2 ± 5.3 137.4 ± 7.0 128.0 ± 4.6 129.1 ± 3.8 0.594

The p values were obtained from ANCOVA.

Results for triglycerides were first log-transformed then back-transformed for reporting. Results for triglycerides are means (95% CI); all other results are means ± SE.

Model 1: adjusted for age.

Model 2: adjusted for age and race/ethnicity.

A/N, afternoon/night shift; ANCOVA, analysis of covariance; BCOPS, Buffalo Cardio-metabolic Occupational Police Stress; CI, confidence interval; HDL, high-density lipoprotein; LDL, low-density lipoprotein; SE, standard error.