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Randomised controlled trial comparing effectiveness of touch screen system with leaflet for providing women with information on prenatal testsCommentary: Evaluating electronic consumer health material

BMJ 2000; 320 doi: https://doi.org/10.1136/bmj.320.7228.155 (Published 15 January 2000) Cite this as: BMJ 2000;320:155

Data supplement


  • Table A

    Figure 1

    Figure 2
     

    Table A  Baseline characteristics of 875 pregnant women randomised to control group (information leaflet on prenatal tests) or intervention group (leaflet plus touch screen information system). Values are numbers (percentages) unless stated otherwise
     

     
    Control group (n=430)
    Intervention group (n=445)
    Difference
    (95% CI)
    P value
    Mean (SD) maternal age (years)
    29.7 (5.4)
    30.1 (5.2)
    0.4 ( 1.1 to 0.3)
    0.253
    Mean (SD) gestation (weeks)
    11.8 (2.4)
    11.7 (2.2)
    0.1 ( 0.3 to 0.3)
    0.949
    Spielberger state-trait anxiety inventory:
    Mean (SD) A-state score
    35.9 (9.6)
    36.1 (9.3)
    0.2 ( 1.5 to 1.1)
    0.750
    Mean (SD) A-trait score
    37.5 (10.1)
    37.6 (9.5)
    0.1 ( 1.5 to 1.2)
    0.831
    Domestic Situation:    
    Spouse or partner
    387 (91)
    397 (89)
    		 
    0.206
    Parents
    22 (5)
    18 (4)
    		  
    Other*
    18 (4)
    30 (7)
    		  
    Missing values†
    3
    0
    		  
    Employment:    
    Full time
    181 (42)
    173 (39)
    		 
    0.259
    Part time
    106 (25)
    111 (25)
    		  
    Unemployed
    107 (25)
    132 (30)
    		  
    Education
    13 (3)
    6 (1)
    		  
    Other‡
    21 (5)
    20 (5)
    		  
    Missing values†
    2
    3
    		  
    Education:    
    Secondary
    52 (12)
    54 (12)
    		 
    0.126
    O level or standard
    79 (19)
    67 (15)
    		  
    Vocational
    44 (10)
    32 (7)
    		  
    Higher
    53 (12)
    47 (11)
    		  
    Further or university
    188 (44)
    224 (51)
    		  
    Other§
    9 (2)
    17 (4)
    		  
    Missing values†
    5
    4
    		  
    Carstairs deprivation category:    
    1 (affluent)
    145 (34)
    164 (38)
    		 
    0.120
    2
    100 (23)
    69 (16)
    		  
    3
    55 (13)
    71 (17)
    		  
    4
    35 (8)
    27 (6)
    		  
    5
    25 (6)
    27 (6)
    		  
    6
    20 (5)
    22 (5)
    		  
    7 (deprived)
    46 (11)
    47 (11)
    		  
    Missing values†
    4
    18
    		  

    *Divorced, single, or not known.
    †Missing values omitted from analysis.
    ‡Self employed, registered disabled, volunteer or management, part time studies, temporary work.
    §Chartered accountancy, industry apprentice, open university, higher national diploma, nursery studies, correspondence course.

    Figure 1


     

    Figure 2

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