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. 2015 Jul 1;10(7):e0124451. doi: 10.1371/journal.pone.0124451

Table 1. Baseline Comparability Across Randomization Arms (Mean ± SD*).

Placebo Statin Pooled Pravastatin Simvastatin Statin comparisons to placebo
n = 342 n = 674 n = 338 n = 336
Age (years) 57.4 ± 12.7 56.8 ± 12.0 57.1 ± 12.0 56.6 ± 12.0 NS all
Sex (% male) 67.8 68.2 68.0 68.5 NS all
Ethnicity (% white) 81.9 80.9 81.7 80.1 NS all
Smoker (% current) 8.77 8.01 8.58 7.44 NS all
Education (scaled 1–9) 5.72 ± 1.45 5.88 ± 1.51 5.84 ± 1.47 5.91 ± 1.55 NS all
TC (mg/dL) 229 ± 27.8 229 ± 30.2 232 ± 30.9 226 ± 29.2 NS all
HDL (mg/dL) 52.5 ± 15.4 52.0 ± 15.6 53.1 ± 16.2 50.8 ± 15.0 NS all
Triglycerides (mg/dL) 136 ± 79.6 136 ± 73.8 138 ± 75.1 135 ± 72.6 NS all
LDL (mg/dL) 150 ± 26.1 150 ± 25.1 152 ± 26.4 149 ± 23.6 NS all
Ratio TC / HDL 4.67 ± 1.24 4.73 ± 1.40 4.72 ± 1.56 4.75 ± 1.21 NS all
Glucose (mg/dL) 90.0 ± 9.08 90.2 ± 9.11 89.9 ± 8.65 90.5 ± 9.55 NS all
SBP (mm Hg) 126 ± 14.2 127 ± 14.4 127 ± 13.7 128 ± 15.0 NS all
DBP (mm Hg) 73.9 ± 8.79 75.2 ± 8.80 75.4 ± 8.98 75.0 ± 8.63
Weight (lb) 185 ± 41.0 185 ± 33.6 184 ± 33.7 186 ± 33.6 NS all
Waist (cm) 98.2 ± 13.8 98.0 ± 11.8 97.6 ± 11.6 98.3 ± 12.1 NS all
Whole blood serotonin (nM) 873 ± 335 868 ± 322 872 ± 342 864 ± 302 NS all
Testosterone (ng/ml) 3.07 ± 2.30 3.17 ± 2.31 3.18 ± 2.35 3.17 ± 2.28 NS all
OASMa 2.25 ± 5.26 2.76 ± 4.73 2.81 ± 5.19 2.71 ± 4.22 NS all

DBP = diastolic blood pressure; HDL = high density lipoprotein cholesterol; LDL = low density lipoprotein cholesterol; NS = nonsignificant; OASMa = Overt-Aggression-Scale-Modified–Aggression-Subscale; SBP = systolic blood pressure; TC = total cholesterol. Except items designated as %.

DBP: P = 0.04 placebo vs. statin; and P = 0.04 placebo vs. pravastatin.

NS (P>0.1) placebo vs. simvastatin; and simvastatin vs. pravastatin.

Weight and waist circumference were assessed at the screening visit (values shown are for randomized participants only). All other measures were assessed at the baseline visit. Conversion factors: To convert cholesterol (LDL, HDL, TC) from mg/mL to mmol/L, multiply by 0.0259. To convert triglyceride from mg/dL to mmol/L, multiply by 0.0113. To convert glucose from mg/dL to mmol/L, multiply by 0.0555. Baseline OASMa was not predicted by baseline testosterone: β = -0.020 (SE = 0.12) P = 0.87.