Serum Osteocalcin and Testosterone Concentrations in Adult Males with or without Primary Osteoporosis: A Meta-Analysis

Table 1

Characteristics of included studies.

Study

Sampling condition

Age (year); Mean ± SD (Range)

TOcn (μg/L); Mean ± SD

TT (nmol/L); Mean ± SD

BMI (kg/m^2); Mean ± SD

Sample size

NOS

OP

Con.

OP

Con.

OP

Con.

OP

Con.

OP

Con.

Paccou et al., 2012

8–10 am; fasting

(NA)

(40–NA)

79

26

★★★★★★★★

Lormeau et al., 2004

7:30–9 am fasting

(NA)

(NA)

33

40

★★★★★★★★

Pietschmann et al., 2001

NA

(40–76)

(38–76)

NA

NA

31

35

★★★★★★★

Gillberg et al., 2001

7-8 am; fasting

(27–57)

(27–62)

20

12

★★★★★★★

Gillberg et al., 1999

7-8 am; fasting

(27–55)

(27–62)

12

12

★★★★★★★

OP = osteoporotic group; Con. = control group; TOcn = total osteocalcin; TT = total testosterone; BMI = Body Mass Index; NOS = Newcastle-Ottawa Scale; NA = data not available. Range: 0–9 stars. Studies achieving six or more stars are considered of high quality.