Crthuky

I am trying to figure something out that I can't find the answer to.

I am trying to create a table where some cells in a row need to have multiple rows. I thought "multirow" would allow me to do this, which it does, but it incorrectly vertically centers the data that spans multiple rows. See the attached figure - it ends up being too high.

I realize that in the example I sent, I can just use 3 rows with the top and bottom being empty but in the case of having an even number of split rows, that method isn't possible. I also looked at the documentation for multirow and they specify that there is a finetuning parameter where you can adjust its height manually. I do not want to do this because if I am off even by a little bit it won't line up. Plus I figured there would be a better way.

Here is a MWE

documentclass[12pt,a4paper,twoside]report
%usepackage[latin1]inputenc % shouldn't you be using 'utf8'?
usepackageamsmath
%%%usepackageamsfonts % is loaded automatically by 'amssymb'
usepackageamssymb
usepackagegraphicx

usepackagemultirow
usepackagearray
newcolumntypeM[1]>centeringarraybackslashm#1textwidth

setlengthtextheight9in % Height of the main body of the text
setlengthtopmargin-.5in % .5" margin on top of page
setlengthheadsep.5in % space between header and top of body
addtolengthheadsep-headheight % See The LaTeX Companion, p 85
setlengthfootskip.5in % space between footer and bottom of body
setlengthtextwidth6.25in % width of the body of the text
setlengthoddsidemargin.25in % 1.25" margin on the left for odd pages
setlengthevensidemargin0in % 1.25" margin on the right for even pages

% Marginal notes
setlengthmarginparwidth.75in % width of marginal notes
setlengthmarginparsep.125in % space between marginal notes and text
usepackagebooktabs

begindocument
begintable[ht]
renewcommandarraystretch1.5
setlengthtabcolsep0pt
caption[A caption]A caption 
labeltab-brachy-review
footnotesize
begintabular*textwidth@extracolsepfill%
 M0.1M0.14M0.13M0.15M0.13M0.14M0.085M0.125

 Refs & Site & Method & Sample Size & fractions & Delay (days) & BF and Perm & test \ midrule
 Janssen & Te & 1 & 23 & 25 / 5 & Day 5textsuperscripta & Increase & NSC \ midrule
 multirow3*Coolens & multirow3*Li & multirow3*2 & multirow3*6 & multirow3*30-54 / 6 & Day 3textsuperscripta & Increase & Increase \ cmidrule6-8
 & & & & & 30 & Decrease & NSC \ cmidrule6-8
 & & & & & 60 & Decrease & NSC \ cmidrule6-8
 Janssen & Te & 1 & 23 & 25 / 5 & Day 5textsuperscripta & Increase & NSC \ bottomrule
endtabular*
endtable
enddocument