Table 8.3 on page 148 using meta20.dta.
use https://stats.idre.ucla.edu/stat/stata/examples/mlm_ma_hox/meta20, clear
metareg d, wsvar(varofd)
Iteration 1: tau^2 = 0
Iteration 2: tau^2 = .10394204
Iteration 3: tau^2 = .1391358
Iteration 4: tau^2 = .14386754
Iteration 5: tau^2 = .14439935
Meta-analysis regression No of studies = 20
tau^2 method reml
tau^2 estimate = .1445
Successive values of tau^2 differ by less than 10^-4 :convergence achieved
------------------------------------------------------------------------------
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
_cons | .5801336 .1079661 5.37 0.000 .3685238 .7917434
------------------------------------------------------------------------------
metareg d weeks, wsvar(varofd)
Iteration 1: tau^2 = 0
Iteration 2: tau^2 = .03136796
Iteration 3: tau^2 = .03571649
Iteration 4: tau^2 = .03614453
Meta-analysis regression No of studies = 20
tau^2 method reml
tau^2 estimate = .0362
Successive values of tau^2 differ by less than 10^-4 :convergence achieved
------------------------------------------------------------------------------
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
weeks | .139891 .0337286 4.15 0.000 .0737842 .2059978
_cons | -.2168592 .2039623 -1.06 0.288 -.6166179 .1828996
------------------------------------------------------------------------------
Table 8.4 on page 151.
metareg d, wsvar(varofd)
Meta-analysis regression No of studies = 20
tau^2 method reml
tau^2 estimate = .1445
Successive values of tau^2 differ by less than 10^-4 :convergence achieved
------------------------------------------------------------------------------
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
_cons | .5801336 .1079661 5.37 0.000 .3685238 .7917434
------------------------------------------------------------------------------
metareg d ntot, wsvar(varofd)
Iteration 1: tau^2 = 0
Iteration 2: tau^2 = .11468708
Iteration 3: tau^2 = .15297015
Iteration 4: tau^2 = .15770374
Iteration 5: tau^2 = .15819142
Meta-analysis regression No of studies = 20
tau^2 method reml
tau^2 estimate = .1582
Successive values of tau^2 differ by less than 10^-4 :convergence achieved
------------------------------------------------------------------------------
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
ntot | .0024866 .0089872 0.28 0.782 -.015128 .0201013
_cons | .4430318 .5115285 0.87 0.386 -.5595457 1.445609
------------------------------------------------------------------------------
metareg d rii, wsvar(varofd)
Iteration 1: tau^2 = 0
Iteration 2: tau^2 = .10891042
Iteration 3: tau^2 = .14966556
Iteration 4: tau^2 = .1554571
Iteration 5: tau^2 = .15612963
Meta-analysis regression No of studies = 20
tau^2 method reml
tau^2 estimate = .1562
Successive values of tau^2 differ by less than 10^-4 :convergence achieved
------------------------------------------------------------------------------
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
rii | .5088333 1.476465 0.34 0.730 -2.384984 3.402651
_cons | .1600426 1.226581 0.13 0.896 -2.244012 2.564098
------------------------------------------------------------------------------
metareg d weeks, wsvar(varofd)
Iteration 1: tau^2 = 0
Iteration 2: tau^2 = .03136796
Iteration 3: tau^2 = .03571649
Iteration 4: tau^2 = .03614453
Meta-analysis regression No of studies = 20
tau^2 method reml
tau^2 estimate = .0362
Successive values of tau^2 differ by less than 10^-4 :convergence achieved
------------------------------------------------------------------------------
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
weeks | .139891 .0337286 4.15 0.000 .0737842 .2059978
_cons | -.2168592 .2039623 -1.06 0.288 -.6166179 .1828996
------------------------------------------------------------------------------
metareg d ntot rii weeks, wsvar(varofd)
Iteration 1: tau^2 = 0
Iteration 2: tau^2 = .03946844
Iteration 3: tau^2 = .04664761
Iteration 4: tau^2 = .04741679
Meta-analysis regression No of studies = 20
tau^2 method reml
tau^2 estimate = .0475
Successive values of tau^2 differ by less than 10^-4 :convergence achieved
------------------------------------------------------------------------------
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
ntot | -.0035676 .0069797 -0.51 0.609 -.0172475 .0101123
rii | -.5499779 1.192699 -0.46 0.645 -2.887626 1.78767
weeks | .1504684 .0372957 4.03 0.000 .0773701 .2235667
_cons | .3837634 .917115 0.42 0.676 -1.413749 2.181276
------------------------------------------------------------------------------