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Table 3 Differences in sample characteristics between individuals with two or three observations

From: Is adolescent body mass index and waist circumference associated with the food environments surrounding schools and homes? A longitudinal analysis

  Mean values Tests
2 observations 3 observations Statistic p-value
Age during Year 7 11.6 11.6 0.80 0.427
Age during Year 9 13.9 13.9 1.28 0.200
Age during Year 11 15.9 15.9 1.47 0.144
Sex (Male) 0.44 0.54 7.37 0.007
Race (Non-White) 0.24 0.21 0.90 0.343
Home deprivation Score 0.29 0.22 4.07 < 0.001
School deprivation score 0.25 0.18 5.80 < 0.001
  1. NB. T-tests were performed for continuous data (and mean values are presented in the table), chi-squared tests for categorical (proportions are presented in the table)