Effects of Phytoestrogen Supplement on Quality of Life of Postmenopausal Women: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Table 1

Search strategy.

Database	Searching keywords
Cochrane library	(1) Postmenopause: 7873; (2) Phytoestrogen: 210; (3) Isofalvone: 665; (4) Quality of life: 74410; (5) #2 or #3: 817; (6) #1 and #4 and #5: 34
Medline	(1) exp postmenopause: 22329; (2) exp phytoestrogens: 9023; (3) exp isoflavones: 16593; (4) exp quality of life: 157718; (5) 2 or 3: 17634; (6) 1 and 4 and 5: 11
PubMed	(1) Postmenopause: 42081; (2) Phytoestrogen: 11294; (3) Isofalvone: 18640; (4) Quality of life: 320926; (5) #2 or #3: 20967; (6) #1 and #4 and #5: 42
Embase	'postmenopause'/exp AND ('phytoestrogen'/exp OR 'phytoestrogen' OR 'phytoestrogens' OR 'phytooestrogen' OR 'phytooestrogens' OR 'isoflavone derivative'/exp OR '5 hydroxy 7 prenyloxyisoflavone' OR '5 hydroxy 7, 4' dimethoxyisoflavone' OR 'isoflavone derivative' OR 'isoflavones' OR 'novasoy' OR 'novasoy 400' OR 'promensil' OR 'rimostil') AND 'quality of life'/exp; result=73