Table 2 Draft search strategy for Ovid MEDLINE

1

exp postpartum depression/ or Postpartum depression.mp. or maternal depression.mp. or post partum depression.mp. or post-partum depression.mp. or post-natal depression.mp. or post natal depression.mp. or postnatal depression.mp. or puerperal depression.mp. or puerperium depression.mp. OR (depression adj3 (postpartum OR postnatal)).mp.

2

((control adj3 group*) or ((patient or healthy or volunteer or volunteers) adj3 control*)).mp. or controlled clinical trial.pt. or (quasi* adj2 (randomiz* or randomis*)).mp. or randomized controlled trial.pt. or double-blind method/ or controlled clinical trials as topic/ or randomized controlled trials as topic/ or early termination of clinical trials as topic/ or (randomi?ed adj7 trial*).mp. or (double-blind adj1 method).mp. or (controlled adj3 trial*).mp. or ((single or doubl* or tripl* or treb*) and (blind* or mask*)).ti,ab,kw. or 4 arm.ti,ab,kw. or four arm.ti,ab,kw.

3

1 and 2

4

3 not ((exp Animals/ not (exp Animals/ and exp Humans/)) or rabbit.ti. or rabbits.ti. or rat.ti. or rats.ti. or cattle.ti. or bovine.ti. or mice.ti. or mouse.ti. or ovine.ti. or sheep.ti. or goat.ti. or dog.ti.)