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Table 4 Differences in students (N = 425) pretest and posttest scores on HIV/AIDS, obesity, nutrition, physical activity and communication subscales by school quintile

From: Effectiveness of a pre-adolescent inter-generational intervention to address HIV and obesity in South Africa, using a pretest-posttest design

Subscale Quintile Pretest Posttest
Mean (SD) F Statistic P-value Mean (SD) F Statistic P-value
HIV/AIDS
 Knowledge about HIV/AIDS 1 7.95 (3.07) 10.31 < 0.01* 9.68 (2.76) 13.15 < 0.01*
2 7.46 (3.25) 10.21 (2.58)
3 7.43 (3.08) 9.70 (2.98)
4 9.76 (2.68) 11.82 (1.32)
 Attitude to openness about status 1 1.92 (0.95) 2.41 0.07 1.96 (0.96) 1.31 0.27
2 1.77 (0.94) 1.89 (0.94)
3 1.96 (0.97) 2.01 (0.96)
4 1.62 (0.89) 1.74 (0.91)
 Perception of stigma in community 1 2.25 (0.81) 4.23 < 0.01* 2.31 (0.79) 0.22 0.89
2 1.96 (0.79) 2.30 (0.79)
3 2.03 (0.90) 2.32 (0.80)
4 2.34 (0.73) 2.23 (0.80)
 Perceived risk about contracting HIV/AIDS 1 1.98 (0.85) 0.46 0.71 1.88 (0.87) 1.96 0.12
2 2.06 (0.87) 1.89 (0.83)
3 2.00 (0.86) 2.10 (0.85)
4 1.89 (0.88) 1.84 (0.88)
 Exposure to HIV/AIDS education 1 2.36 (0.89) 6.28 < 0.01* 2.77 (0.57) 3.13 0.03
2 2.24 (0.88) 2.94 (0.29)
3 2.24 (0.91) 2.80 (0.56)
4 2.74 (0.64) 2.95 (0.33)
Obesity
 Awareness of Obesity 1 1.89 (0.93) 2.98 0.03 2.65 (0.70) 6.68 < 0.01*
2 1.80 (0.92) 2.94 (0.29)
3 1.90 (0.90) 2.75 (0.60)
4 2.22 (0.91) 2.93 (0.30)
 Awareness about BMI 1 1.38 (0.69) 0.09 0.97 2.52 (0.77) 6.60 < 0.01*
2 1.41 (0.63) 2.74 (0.58)
3 1.41 (0.68) 2.36 (0.85)
4 1.41 (0.70) 2.78 (0.58)
 Skill (Measuring and interpreting BMI) 1 1.36 (0.67) 0.60 0.62 2.28 (0.86) 2.64 0.49
2 1.33 (0.58) 2.50 (0.79)
3 1.45 (0.72) 2.19 (0.92)
4 1.36 (0.65) 2.46 (0.78)
Nutrition
 Perceived importance of nutrition to health 1 1.03 (0.43) 1.14 0.33 1.04 (0.47) 1.68 0.17
2 1.14 (0.59) 0.91 (0.58)
3 1.03 (0.47) 1.09 (0.52)
4 1.09 (0.56) 1.04 (0.51)
 Awareness about food labels 1 2.14 (0.91) 1.74 0.16 2.80 (0.53) 3.66 0.01
2 1.95 (0.86) 2.86 (0.46)
3 2.20 (0.85) 2.75 (0.60)
4 2.27 (0.85) 2.99 (0.12)
 Skill (Interpreting a food label) 1 2.04 (0.93) 2.73 0.04 2.74 (0.61) 2.54 0.06
2 1.77 (0.82) 2.79 (0.51)
3 2.03 (0.90) 2.73 (0.62)
4 2.19 (0.87) 2.93 (0.25)
Physical Activity
 Attitude to importance of physical activity for health 1 2.80 (0.57) 0.85 0.47 2.77 (0.60) 0.11 0.95
2 2.67 (0.74) 2.81 (0.55)
3 2.79 (0.59) 2.77 (0.62)
4 2.78 (0.60) 2.78 (0.60)
 Awareness about pulse rate 1 1.59 (0.85) 5.26 < 0.01* 2.50 (0.82) 6.94 < 0.01*
2 1.34 (0.91) 2.77 (0.57)
3 1.58 (0.79) 2.43 (0.85)
4 1.88 (0.91) 2.85 (0.49)
 Skill (Measuring pulse rate) 1 1.41 (0.70) 1.33 0.26 2.32 (0.86) 10.77 < 0.01*
2 1.33 (0.61) 2.67 (0.63)
3 1.43 (0.66) 2.24 (0.85)
4 1.55 (0.80) 2.78 (0.56)
Communication
 Behaviour in communicating about adolescent issues 1 17.06 (5.07) 2.76 0.04 16.78 (4.89) 2.61 0.05
2 15.97 (4.51) 16.30 (4.42)
3 16.67 (4.74) 17.45 (4.71)
4 15.20 (5.09) 15.51 (4.97)
  1. * Statistically significant