Research Article

Controlled Cohort Study of Serum Gonadal and Adrenocortical Steroid Levels in Males Prior to Onset of Rheumatoid Arthritis (pre-RA): A Comparison to pre-RA Females and Sex Differences among the Study Groups

Table 1

Hormonal values in males of reported assays and normalized, imputed values in females to full sample sizes.

Hormones assayed and
statistical values
Reported assay values in malesNormalized and imputed values in females
pre-RA ( )Control ( )Total ( )pre-RA ( )Control ( )Total ( )

17-OH Pregnenolone:
 Mean (nmol/L) ± SE
 Median; IQR11.0; 8.7–14.610.2; 7.3–15.210.2; 7.7–15.05.7; 4.2–8.85.7; 4.4–7.95.7; 4.4–8.2
17-OH Progesterone:
 Mean (nmol/L) ± SE
 Median; IQR4.5; 3.5–6.04.7; 3.1–6.34.7; 3.2–6.23.6; 1.7–6.13.0; 1.9–5.73.1; 1.9–5.9
Dehydroepiandrosterone:
 Mean (nmol/L) ± SE
 Median; IQR7.7; 3.9–9.77.2; 4.8–10.37.2; 4.7–10.114.8; 11.5–19.215.9; 12.5–20.815.6; 12.4–19.7
Androstenedione:
 Mean (nmol/L) ± SE
 Median; IQR2.2; 1.4–3.02.2; 1.5–2.92.2; 1.5–2.96.6; 5.3–8.37.2; 6.2–8.87.1; 6.0–8.6
Testosterone (T):
 Mean (nmol/L) ± SE
 Median; IQR17.8; 13.3–24.317.4; 13.7–23.317.8; 13.6–23.52.3; 1.8–2.92.3; 1.8–2.92.3; 1.8–2.9
Estradiol (E2):
 Mean (pmol/L) ± SE
 Median; IQR68; 49.0–84.366.0; 48.0–80.366.0; 48.0–81.0168; 83–276176; 80–278173; 81–278
E2/T ratio ( )
 Mean ± SE
 Median; IQR4.0; 2.7–4.93.4; 2.5–5.03.5; 2.6–5.076.5; 27.7–15180.2; 37.6–13878.8; 35.4–138
Cortisol:
 Mean (nmol/L) ± SE
 Median; IQR257; 161–381255; 186–382255; 184–369241; 143–329205; 155–285216; 155–286
DHEA sulfate (DHEAS):
 Mean ( mol/L) ± SE
 Median; IQR6.2; 3.8–11.06.8; 4.8–8.86.8; 4.6–8.92.3; 1.5–3.52.6; 1.6–3.92.5; 1.6–3.8
Luteinizing Hormone (LH):
 Mean (IU/L) ± SE
 Median; IQR5.5; 4.0–7.25.1; 4.0–6.95.1; 4.0–7.019.6; 4.3–36.215.7; 5.4–39.517.1; 5.3–37.9
Prolactin (PRL):
 Mean ( g/L) ± SE
 Median; IQR7.6; 4.0–11.46.1; 4.6–9.06.3; 4.6–9.79.5; 8.1–13.310.4; 8.0–13.410.1; 8.1–13.4
Mean ages ± SEs

SE: standard error of mean, IQR: interquartile range of median.
, as previously reported [13].