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Table 4 Spearman’s rank order correlations between short-term and long-term changes in zBMI and changes in HRQoL for the entire sample (n = 74) and for girls (n = 50) and boys (n = 24) separately

From: Changes in self-reported and parent-reported health-related quality of life in overweight children and adolescents participating in an outpatient training: findings from a 12-month follow-up study

  Short-term zBMI change Long-term zBMI change Short-term zBMI change Long-term zBMI change
HRQoL changes: self-report proxy-report self-report proxy-report self-report proxy-report self-report proxy-report
total total total total
total HRQoL short-term .008 -.024 -.143 -.080 -.088 .131 .001 -.031 -.255* -.006 -.196 .187
long-term .127 .189 -.006 -.056 .107 .189 .175 .187 -.170 .392* -.191 .201
physical short-term -.218* -.108 -.094 -.046 -.357** .100 -.251* .266 -.153 -.003 -.219 .395*
long-term .003 .087 -.118 -.101 .010 .054 .043 .110 -.170 .054 -.277* .358*
emotional short-term -.002 -.093 -.150 -.021 -.080 .197 -.059 -.157 -.309* .172 -.059 .059
long-term .112 .066 .038 -.151 .109 .124 .117 -.024 -.132 .467* -.181 -.035
self-esteem short-term .009 -.002 -.226* -.070 -.067 .236 -.044 .123 -.300* -.078 -.166 .192
long-term .162 .142 -.017 -.140 .222 .009 .066 .306 -.011 -.045 -.208 -.018
family short-term .021 .017 -.068 .002 -.003 .057 .006 .094 -.039 -.160 -.056 .146
long-term .169 .119 .166 .024 .108 .321 .113 .154 .069 .368* -.046 .168
friends short-term .179 -.140 .165 -.069 .155 .242 -.151 -.111 .047 .445* -.156 .092
long-term .254* .187 .058 .013 .190 .408* .183 .166 -.123 .485** -.055 .212
school short-term -.098 .073 -.243* -.016 -.176 .164 -.025 .329 -.383** .039 -.116 .182
long-term -.237* .041 -.232* -.117 -.237* -.086 .167 -.041 -.380** .124 -.115 .044
weight-specific HRQoL short-term -.176 -.218* -.072 -.088 -.323 .218 -.234 -.232 -.281 .250 -.296* .305
long-term .164 -.010 -.363* -.135 .137 .127 -.040 .080 -.377 -.261 -.360** .290
weight complaints short-term .417* .300** .120 .142 .568* .111 .322* .275 .496* -.322 .253* -.062
long-term .165 .061 .495** .134 .406 -.191 .051 .096 .710** .242 .311* -.324
  1. * p < .05, ** p < .01, ** p < .001 (one-tailed); ♀: girls; ♂: boys;
  2. Short-term change = from pre- to post-treatment (pre minus post);
  3. Long-term change = from pre-treatment to follow-up 2 (follow-up 2 minus pre);
  4. Except for weight complaints, negative correlations imply that reductions in zBMI (negative change score) were associated with improvements in HRQoL (positive change score).
  5. In general, correlations with generic HRQoL change scores were very similar for raw scores and z-scores, so only results for z-scores are given.