Table 1.

Study Characteristics.

CharacteristicsNo.PercentReferences
Studies46100.0
Study design
 Randomized controlled trial*3167.478 ,83–89 ,93–95 ,97 ,98 ,101 ,102–104 ,106–109 ,111–113 ,116 ,118–121 ,123 ,124
 Concurrently controlled1532.679 ,82 ,90 ,92 ,96 ,99 ,100 ,105 ,110 ,114 ,115 ,117 ,122
Type of control
 Usual care3065.278–84 ,87–89 ,92–100 ,102 ,107 ,109 ,110 ,112 ,114 ,115 ,117 ,122–124
 Active control1634.885 ,86 ,90 ,101 ,103–106 ,108 ,111 ,113 ,116 ,118–121
Interventions63100.0
Intervention target
 Patients2438.178 ,80–89 ,94 ,96 ,100 ,102 ,103 ,111–113 ,116 ,122
 Physicians2539.785 ,86 ,90 ,92 ,93 ,95 ,97 ,101 ,104 ,107 ,108 ,111 ,114 ,115 ,118–121 ,124
 Patients and physicians1219.079 ,85 ,98 ,99 ,106 ,109–111 ,116 ,121 ,123 ,124
 System23.2105 ,117
Intervention strategy
 Behavioral2234.985 ,86 ,90 ,92 ,93 ,95–97 ,101 ,103 ,104 ,107 ,109 ,111 ,115 ,116 ,118–121 ,124
 Cognitive57.997 ,102 ,108 ,113 ,119
 Sociologic57.980 ,83 ,84 ,87 ,100
 Behavioral and cognitive1015.985 ,94 ,97–99 ,106 ,110 ,112 ,114 ,121
 Cognitive and sociologic34.878 ,88 ,89
 Behavioral, cognitive, and sociologic57.979 ,81 ,82 ,122 ,123
Intervention content
 Behavioral strategy
 Postcard or letter reminder1625.479 ,85 ,86 ,94 ,103 ,106 ,111 ,112 ,116 ,123 ,124
 Telephone reminder23.2103 ,86
 Health diary23.296 ,99
 Chart reminder2234.985 ,86 ,95 ,98 ,106 ,107 ,108 ,109 ,110 ,111 ,114 ,115 ,116 ,118 ,119 ,121 ,123 ,124
 Office reminders or poster display34.879 ,99 ,110
 Patient-carried prompt46.398 ,106 ,109 ,120
 Flow sheet or checklist requiring completion914.390 ,92 ,93 ,97 ,104 ,106 ,108 ,110 ,116
 Mass media reminders11.681
 Financial incentives34.882 ,101 ,122
 Cognitive strategy
 Educational letter or pamphlet1320.679 ,81 ,82 ,85 ,94 ,99 ,102 ,106 ,113 ,121 ,123
 Telephone or in-person counseling34.879 ,112 ,121
 Educational mass media23.278 ,79
 Educational workshop or presentation914.378 ,79 ,97 ,98 ,106 ,110 ,114 ,123
 Audit with feedback57.997 ,106 ,108 ,119
 Sociologic strategy
 Peer or lay health workers1015.978 ,79 ,80 ,82 ,83 ,84 ,87 ,88 ,100 ,122
 Culturally sensitive videotape34.880 ,81 ,89
Outcome measurement
 Self-report1532.678–84 ,87,88 ,97 ,99 ,100 ,102 ,112 ,113
 Chart audit2350.089 ,90 ,92–96 ,98 ,101 ,105–110 ,114 ,115 ,118 ,120–124
 Claims or electronic record1021.783 ,85 ,86 ,103 ,104 ,111 ,116–119
Patient age-group
 <40 years1430.482 ,84–89 ,93 ,100 ,106 ,111 ,113 ,117 ,121
 40–49 years2350.078 ,80 ,82–84 ,86–89 ,93 ,97 ,100 ,102 ,103 ,106 ,108 ,109 ,111–113 ,116 ,117 ,124
 50–59 years2860.978 ,80 ,82–84 ,87–89 ,92 ,93 ,95–100 ,103 ,104 ,106–109 ,112 ,113 ,115–117 ,124
 60+ years1941.379 ,80 ,84 ,87 ,89 ,93–95 ,97 ,98 ,100 ,103 ,104–106 ,112 ,113 ,117 ,120
 Not stated919.681 ,90 ,101 ,110 ,114 ,118 ,119 ,122 ,123
Patient race
 >20% African American1941.379 ,85 ,87 ,89 ,92 ,98 ,99 ,101 ,104–108 ,111 ,113 ,115 ,120 ,122 ,124
 >20% Hispanic, Latina613.080 ,84 ,89 ,96 ,98 ,106
 >20% Asian, Pacific Islander36.581 ,82 ,100
 >20% Native American24.388 ,117
 >20% White1226.178 ,83 ,98 ,102 ,103 ,108 ,109 ,111 ,113 ,115 ,120 ,124
 Not stated1430.486 ,90 ,93–95 ,97 ,110 ,112 ,114 ,116 ,118 ,119 ,121 ,123
Percentage with health insurance
 <50%48.780 ,84 ,88 ,89
 50–74%48.781 ,98 ,111 ,113
 75%+1634.878 ,82 ,83 ,85 ,86 ,92 ,94 ,99 ,101 ,103 ,105 ,106 ,108 ,109 ,112 ,116
 Not stated2247.879 ,87 ,90 ,93 ,95–97 ,100 ,102 ,104 ,107 ,110 ,114 ,115 ,117–124
Previous Papanicolaou smear use
 0–24%36.578 ,103 ,121
 25–49%1021.782–85 ,88 ,90 ,98 ,102 ,111 ,117
 50–74%613.079 ,81 ,87 ,92 ,106 ,114
 75%+12.278
 Not stated2963.080 ,83 ,86 ,89 ,93–97 ,99–101 ,103 ,104 ,105 ,107–110 ,112 ,113 ,115 ,116 ,118–120 ,122–124
Time for assessment
 <3 months12.290
 3–6 months1226.184 ,89 ,94–96 ,99 ,102 ,104 ,114–116 ,121
 6–12 months1328.386 ,93 ,103 ,105 ,108 ,111 ,117 ,119 ,120 ,122 ,124
 12+ months2043.478–83 ,85 ,87 ,88 ,92 ,97 ,98 ,100 ,101 ,106 ,107 ,110 ,113 ,118 ,123
 Not stated12.2112
  • * May add to more than 100%, because many interventions used multiple components.