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Table 3 Longitudinal changes in proportion of beverage consumers

From: Consumption patterns of sweet drinks in a population of Australian children and adolescents (2003–2008)

  Time 1 Time 2 p‡
Consumers Consumers  
  Age at time 1 Total n n (%) n (%)  
Sweet drinks (total) All 1604 1232 (76.8) 1145 (71.4) <0.00001
  4 to <6 years 169 125 (74.0) 112 (66.3) 0.06
  6 to <8 years 214 157 (73.4) 140 (65.4) 0.04
  8 to <10 years 278 221 (79.5) 215 (77.3) 0.53
  10 to <12 years 184 146 (79.4) 141 (76.6) 0.54
  12 to <14 years 309 248 (80.3) 233 (75.4) 0.12
  14 to <16 years 277 206 (74.4) 188 (67.9) 0.06
  16 to <18 years 173 129 (74.6) 116 (67.1) 0.09
  p §    0.28   0.004  
Fruit juice/cordial All 1604 1106 (69.0) 1017 (63.4) 0.0001
  4 to <6 years 169 111 (65.7) 102 (60.4) 0.26
  6 to <8 years 214 145 (67.8) 123 (57.5) 0.02
  8 to <10 years 278 199 (71.6) 192 (69.1) 0.49
  10 to <12 years 184 129 (70.1) 127 (69.0) 0.89
  12 to <14 years 309 222 (71.8) 201 (65.1) 0.05
  14 to <16 years 277 183 (66.1) 167 (60.3) 0.11
  16 to <18 years 173 117 (67.6) 105 (60.7) 0.13
  p §    0.62   0.06  
Soft drink All 1604 532 (33.2) 442 (27.6) 0.0001
  4 to <6 years 169 36 (21.3) 23 (13.6) 0.04
  6 to <8 years 214 42 (19.6) 47 (22.0) 0.59
  8 to <10 years 278 80 (28.8) 69 (24.8) 0.27
  10 to <12 years 184 52 (28.3) 48 (26.1) 0.70
  12 to <14 years 309 153 (49.5) 124 (40.1) 0.009
  14 to <16 years 277 102 (36.8) 77 (27.8) 0.09
  16 to <18 years 173 67 (38.7) 54 (31.2) 0.12
  p §    <0.0001   <0.0001  
  1. ‡ P-value for the difference between the proportion of consumers between time 1 and time 2, tested by McNemar’s test.
  2. § P-value for the difference in the proportion of consumers between age groups, tested by Chi-squared test.
  3. Intake of sweet drinks, fruit juice/cordial and soft drinks (yesterday or last school day) by baseline age groups at time 1 and time 2 presented as percentage consumers.