Zhang YL 1996.

Methods	Country: China Setting: outpatients and inpatients Aim: to observe the effects of TPF capsule in the treatment of senile osteoporosis Study design: randomised controlled trial Analysis: T‐test Loss to follow‐up: not reported
Participants	Ethnicity: Chinese 120 senile osteoporosis patients enrolled: 60 in trial group, 60 in control group Inclusion criteria: WHO diagnostic criteria for osteoporosis based on bone density levels, BMD detected by SPA Exclusion criteria: not mentioned
Interventions	Experimental: TPF capsule, 3 to 4 capsules, 3 times a day, for 6 months Control: calcium granule, 10 g, twice a day, for 6 months
Outcomes	BMD, ALP
Notes	No funding sources or declarations of interest for the primary researchers reported
Risk of bias
Bias	Authors' judgement	Support for judgement
Adequate sequence generation	Unclear risk	No information provided
Allocation concealment	Unclear risk	No information provided
Blinding All outcomes	Unclear risk	Insufficient information to permit judgement of 'low risk' or 'high risk'
Incomplete outcome data addressed All outcomes	Low risk	No missing outcome data
Free of selective reporting	Unclear risk	Not all the outcomes that were of interest in this review were reported
Free of other bias	Unclear risk	P value for the baseline comparison not stated