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Table 4 Meta-regressions of basic characteristics of RCTs and mean difference of angina frequency

From: Potential effectiveness of traditional Chinese medicine for cardiac syndrome X (CSX): a systematic review and meta-analysis

Mean difference

Coef.

Std.err

T

P

[95% Conf.

Interval]

Publication year

8.70691

19.39486

0.45

0.697

−74.74244

92.15626

Sample size

.3612435

3.40234

0.11

0.925

−14.27784

15.00033

Medication course

.3836948

2.185376

0.18

0.877

−9.019221

9.786611

Type of interventions

67.53072

71.69857

0.94

0.446

−240.9633

376.0248

_cons

−17557.2

39125.53

−0.45

0.698

−185900.8

150786.4