Table 1 Initial OVID MEDLINE search strategy (1950-present, searched March 2011)

1

domicil*.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

2

residential.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

3

home?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

4

dwelling?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

5

lodging?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

6

housing/

7

housing.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

8

house?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

9

residence?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

10

1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9

11

visit*.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

12

house calls/

13

house call?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

14

intervention?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

15

home care services/

16

11 or 12 or 13 or 14 or 15

17

10 and 16

18

exp infant/

19

infan*.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

20

baby.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

21

babies.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

22

toddler?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

23

preschooler?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

24

pre-schooler?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

25

exp child/

26

child*.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

27

newborn?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

28

neonate?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

29

neo-nate?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

30

neonatal.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

31

neo-natal.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

32

prenatal.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

33

pre-natal.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

34

prenatal care/

35

postnatal care/

36

perinatal care/

37

antenatal.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

38

ante-natal.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

39

postnatal.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

40

post-natal.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

41

postpartum.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

42

post-partum.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

43

exp pregnancy/

44

pregnan*.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

45

expectant.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

46

expecting.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

47

perinatal.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

48

peri-natal.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

49

exp parents/

50

parent*.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

51

mother*.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

52

father*.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

53

matern*.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

54

patern*.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

55

18 or 19 or 20 or 21 or 22 or 23 or 24 or 25 or 26 or 27 or 28 or 29 or 30 or 31 or 32 or 33 or 34 or 35 or 36 or 37 or 38 or 39 or 40 or 41 or 42 or 43 or 44 or 45 or 46 or 47 or 48 or 49 or 50 or 51 or 52 or 53 or 54

56

17 and 55

57

poverty/

58

poverty.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

59

poor.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

60

disadvantaged.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

61

vulnerable populations/

62

vulnerable.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

63

low-income.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

64

at-risk.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

65

high-risk.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

66

low ses.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

67

low socioeconomic.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

68

low socio-economic.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

69

lower class.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

70

social welfare/

71

welfare.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

72

social assistance.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

73

government assistance.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

74

low* income.mp.

75

indigent?.mp.

76

indigenc?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

77

57 or 58 or 59 or 60 or 61 or 62 or 63 or 64 or 65 or 66 or 67 or 68 or 69 or 70 or 71 or 72 or 73 or 74 or 75 or 76

78

56 and 77

79

paraprofessional?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

80

para-professional?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

81

lay.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

82

peer?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

83

nonprofessional?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

84

non-professional?.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

85

mentors/

86

mentor*.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

87

visitor*.mp. [mp = title, original title, abstract, name of substance word, subject heading word, unique identifier]

88

79 or 80 or 81 or 82 or 83 or 84 or 85 or 86 or 87

89

78 and 88

90

limit 89 to (english language and yr = "1990 - 2010")