Protective Effect of Green Tea (Camellia sinensis (L.) Kuntze) against Prostate Cancer: From In Vitro Data to Algerian Patients

Table 3

Patients and respective control data.

	Patients, (%)	Controls-tea, (%)	Controls + green tea, (%)
No. of subjects	70	85	35
Mean age ± SD	70.64 ± 6.5	68.5 ± 6.56	68.81 ± 6.42
value		0.1169	0.2537
Mean PSA ± SD (ng/ml)	62.73 ± 33.97	1.43 ± 0.92	1.27 ± 0.97
value		<0.0001	<0.0001
Gleason score
5–7	28 (40)	—	—
8–10	42 (60)	—	—
Treatment
Prostatectomy + hormone therapy	8 (11)	—	—
Radiotherapy + hormone therapy	8 (11)	—	—
Hormone therapy	34 (49)	—	—
Chemotherapy + hormone therapy	20 (29)	—	—

Control individuals who never or rarely drank tea; control individuals who usually drank 1 to 3 cups of green tea per day; based on unpaired test; comparing PC patients to control individuals who never or rarely drank tea; comparing PC patients to controls who usually drank 1 to 3 cups of green tea per day; PSA = prostate-specific antigen.