meta analysis results for primary outcomes only

gistfile1.txt

     +---------------------------------------------------------------------------+
     |                 code                                   outcome   primar~e |
     |---------------------------------------------------------------------------|
  1. |           Dermen2011                             Drinking Days          1 |
  2. |           Dermen2011                   Drinks per drinking day          . |
  3. |     Fals-Stewart2005               Mean percent  days drinking          1 |
  4. |     Fals-Stewart2005                Mean percent days drinking          . |
  5. | Fals-Stewart2009 (1)          Mean percent days heavy drinking          1 |
     |---------------------------------------------------------------------------|
  6. | Fals-Stewart2009 (2)          Mean percent days heavy drinking          . |
  7. |          Geisner2015                              Consequences          . |
  8. |          Geisner2015                             Weekly drinks          1 |
  9. |         LaChance2009                  Alcohol Related Problems          . |
 10. |         LaChance2009           Average drinks per drinking day          1 |
     |---------------------------------------------------------------------------|
 11. |         LaChance2009       Hazardous Drinking Symptoms (AUDIT)          . |
 12. |       Murphy2010 (1)                           Drinks per week          1 |
 13. |       Murphy2010 (1)                            Heavy Drinking          . |
 14. |       Murphy2010 (2)                           Drinks per week          1 |
 15. |       Murphy2010 (2)                            Heavy Drinking          . |
     |---------------------------------------------------------------------------|
 16. |         Osterman2014                                     AUDIT          . |
 17. |         Osterman2014                       Drink days per week          . |
 18. |         Osterman2014                            Drinks per day          1 |
 19. |         Reid2012 (1)   Standard drinks in typical week (means)          1 |
 20. |         Reid2012 (2)   Standard drinks in typical week (means)          1 |
     |---------------------------------------------------------------------------|
 21. |   Stasiewicz2013 (2)                   Drinks per drinking day          . |
 22. |   Stasiewicz2013 (2)                    Percent days abstinent          . |
 23. |   Stasiewicz2013 (2)               Percent days heavy drinking          1 |


. metan nc mean_followupc sd_followupc nt mean_followupt sd_followupt if primaryoutcome ==1, c
> ohen

           Study     |     SMD   [95% Conf. Interval]     % Weight
---------------------+---------------------------------------------------
1                    |  0.240      -0.202     0.683          7.77
5                    |  0.588       0.195     0.980          9.87
8                    | -0.006      -0.322     0.311         15.21
10                   |  0.571       0.213     0.928         11.91
12                   |  0.214      -0.244     0.672          7.27
14                   |  0.479       0.055     0.904          8.45
18                   | -0.034      -0.395     0.327         11.68
19                   |  0.202      -0.127     0.531         14.06
20                   |  0.377      -0.060     0.814          7.97
23                   |  0.366      -0.146     0.877          5.82
---------------------+---------------------------------------------------
I-V pooled SMD       |  0.276       0.152     0.399        100.00
---------------------+---------------------------------------------------

  Heterogeneity chi-squared =  12.40 (d.f. = 9) p = 0.192
  I-squared (variation in SMD attributable to heterogeneity) =  27.4%

  Test of SMD=0 : z=   4.38 p = 0.000











. metan nc mean_followupc sd_followupc nt mean_followupt sd_followupt , cohen

           Study     |     SMD   [95% Conf. Interval]     % Weight
---------------------+---------------------------------------------------
1                    |  0.240      -0.202     0.683          3.99
2                    |  0.390      -0.055     0.835          3.94
5                    |  0.588       0.195     0.980          5.06
6                    |  0.510       0.103     0.916          4.72
7                    |  0.179      -0.138     0.496          7.78
8                    | -0.006      -0.322     0.311          7.81
9                    |  0.615       0.257     0.974          6.07
10                   |  0.571       0.213     0.928          6.11
11                   |  0.648       0.288     1.007          6.04
12                   |  0.214      -0.244     0.672          3.73
13                   |  0.300      -0.159     0.759          3.71
14                   |  0.479       0.055     0.904          4.34
15                   |  0.381      -0.041     0.803          4.38
16                   | -0.112      -0.473     0.250          5.99
18                   | -0.034      -0.395     0.327          6.00
19                   |  0.202      -0.127     0.531          7.21
20                   |  0.377      -0.060     0.814          4.09
21                   | -0.043      -0.551     0.464          3.04
22                   | -0.301      -0.811     0.209          3.00
23                   |  0.366      -0.146     0.877          2.99
17                   |  (Excluded)
---------------------+---------------------------------------------------
I-V pooled SMD       |  0.282       0.194     0.370        100.00
---------------------+---------------------------------------------------

  Heterogeneity chi-squared =  32.92 (d.f. = 19) p = 0.025
  I-squared (variation in SMD attributable to heterogeneity) =  42.3%

  Test of SMD=0 : z=   6.26 p = 0.000