. 2023 Jan 1;41(3):692–700. doi: 10.5534/wjmh.220112

Table 3. Diffences of clinical parameters after treatment.

Variable	Visit (wk)	Maca (n=41)	p-value^a	Placebo (n=39)	p-value^a	p-value^b
Body weight (kg)	0	68.88±9.49		69.19±8.01
Body weight (kg)	12	69.30±9.27	0.1009	70.01±8.00	0.0127	0.1871
Waist circumference (cm)	0	87.76±6.97		87.88±7.09
Waist circumference (cm)	12	88.72±8.11	0.0269	88.57±6.88	0.0277	0.603
PSA (ng/mL)	0	1.31±0.92		1.55±1.15
PSA (ng/mL)	12	1.35±1.14	0.1509	1.45±0.97	0.1580	0.0569
Serum testosterone (ng/mL)	0	4.40±1.64		5.46±1.88
Serum testosterone (ng/mL)	12	4.41±1.76	0.9526	4.73±1.66	0.0156	0.444
Serum free testosterone (pg/mL)	0	7.54±1.84		8.74±1.98
Serum free testosterone (pg/mL)	12	7.59±2.06	0.5295	8.33±2.74	0.3051	0.9184
Serum total cholesterol (mg/dL)	0	161.66±32.42		179.97±35.42
Serum total cholesterol (mg/dL)	12	159.44±37.31	0.3382	183.08±37.50	0.3441	0.1607
Serum HDL-C (mg/dL)	0	49.37±10.60		50.49±11.36
Serum HDL-C (mg/dL)	12	48.51±9.58	0.3676	49.33±12.25	0.3127	0.9429
Serum LDL-C (mg/dL)	0	88.63±28.78		103.51±31.54
Serum LDL-C (mg/dL)	12	89.44±33.26	0.6897	106.62±31.53	0.2595	0.3937
Serum triglyceride (mg/dL)	0	110.27±68.36		119.85±65.98
Serum triglyceride (mg/dL)	12	96.59±40.42	0.1412	135.44±82.70	0.0878	0.0047

Values are presented as mean±standard deviation.

Maca: Lepidium meyenii, PSA: prostate specific antigen, HDL-C: high density lipoprotein cholesterol, LDL-C: low density lipoprotein cholesterol.

^aCompared within groups (paired t-test).

^bCompared between groups (adjusted baseline).