John Hopkins writes (in part):
I am working on a meta analysis of studies looking at the
risk of cancer in asthma patients. We are using the META
command to generate our summary estimates (we have adjusted
odds ratios, with standard errors). I am trying to take
pooled estimate and confidence limits out of the table as
variables, without manually typing them in.
Here is what I typed into stata to generate the output
tables: meta loggeneff seloggeneff, eform graph(f) cline
xline(1) xlab(.1,1,10)
id(studygen) b2title(gender-specific estimates) print
Here are the output tables:
Meta-analysis (exponential form)
| Pooled 95% CI Asymptotic No. of
Method | Est Lower Upper z_value p_value studies
-------+----------------------------------------------------
Fixed | 1.068 1.038 1.099 4.489 0.000 2
Random | 1.073 0.989 1.165 1.689 0.091
Test for heterogeneity: Q= 8.025 on 1 degrees of freedom (p=
0.005) Moment-based estimate of between studies variance = 0.003
| Weights Study 95% CI
Study | Fixed Random Est Lower Upper
-------------------+----------------------------------------
Vesterinen Males | 2013.93 280.27 1.12 1.07 1.17
Vesterinen Females | 2646.46 289.91 1.03 0.99 1.07
How can I save the summary estimate and confidence limits
from the analysis (random effects) to variables? I need to
take these values and do some data management and additional
analysis with them, and I do not want to hand-enter every
estimate generated from the command.
The help file for -meta- indicates that it saves the
following results (copied directly from the help file):
Saved values
------------
S_1 Theta (fixed)
S_2 SE Theta (fixed)
S_3 Lower CI Limit (fixed)
S_4 Upper CI Limit (fixed)
S_5 Asymptotic Z-value (fixed)
S_6 Asymptotic p-value (fixed)
S_7 Theta (random)
S_8 SE Theta (random)
S_9 Lower CI Limit (random)
S_10 Upper CI Limit (random)
S_11 Asymptotic Z-value (random)
S_12 Asymptotic p-value (random)
S_13 Between-studies Variance, tau^2
<snip>
