CHIP-CE PRF: parent rated assessment of a child's health status/level of functioning. The achievement domain describes developmentally appropriate role functioning in school and with peers. The majority of items assess frequency of activities or feelings using a 5-point response format (1=never, 5=always). Standard scores (T-scores) were established, with all domains and subdomains having a mean score of 50 and standard deviation of 10. Normative range is 40 to 60. Higher scores indicate better health and lower scores indicate worse health.

Number of participants who received at least one dose of study drug and did not have a missing value. Results for Last Observation Carried Forward (LOCF) are included.

CHIP-CE PRF: parent rated assessment of a child's health status/level of functioning. The achievement domain describes developmentally appropriate role functioning in school and with peers. The majority of items assess frequency of activities or feelings using a 5-point response format (1=never, 5=always). Standard scores (T-scores) were established, with all domains and subdomains having a mean score of 50 and standard deviation of 10. Normative range is 40 to 60. Higher scores indicate better health and lower scores indicate worse health.

Number of participants who received at least one dose of study drug and did not have a missing value. Last observation carried forward (LOCF). Change at 12 months is in the participants who continue in the optional extension period (atomoxetine n= 139, OEST n=155). Their data at 6 months was taken as baseline for the 12 month change.

CHIP-CE PRF: parent rated assessment of a child's health status and level of functioning. Domains: Satisfaction, Comfort, Risk Avoidance, Resilience. The majority of items assess frequency of activities or feelings using a 5-point response format (1=never, 5=always). Standard scores (T-scores) were established, with all domains and subdomains having a mean score of 50 and standard deviation of 10. Normative range is 40 to 60. Higher scores indicate better health and lower scores indicate worse health.

Number of participants who received at least one dose of study drug and did not have a missing value. Last observation carried forward (LOCF). Change at 12 months is in the participants who continue in the optional extension period (atomoxetine n= 139, OEST n=155). Their data at 6 months was taken as baseline for the 12 month change.

The 50-item WFIRS-P rates impairment in 6 domains of functioning: home, school, self-concept, social, activities of daily living, and risk taking. Each item is rated by the parent on a 4-point Likert scale from 0 to 3 (0="never or not at all", 1="sometimes or somewhat", 2="often or much", 3="very often or very much"). Average of non-missing values were calculated for each domain as well as the Total, which combined all 6 domains; therefore each scale including total has a range of 0 (best) to 3 (worst).

Number of participants who received at least one dose of study drug and did not have a missing value. Last observation carried forward (LOCF). Change at 12 months is in the participants who continue in the optional extension period (atomoxetine n= 139, OEST n=155). Their data at 6 months was taken as baseline for the 12 month change.

Measures the 18 symptoms contained in the Diagnostic and Statistical Manual of Mental Disorders Fourth Edition, Text Revision (DSM-IV-TR) diagnosis of Attention-Deficit/Hyperactivity Disorder. Individual item scores range from 0 (none/never or rarely) to 3 (severe/very often). Total scores range from 0 to 54. Inattention and Hyperactivity-Impulsivity subscales consisted of 9 items each, for total subcale scores ranging from 0 to 27. Higher scores are indicative of more severe symptoms.

Number of participants who received at least one dose of study drug and did not have a missing value. Last observation carried forward (LOCF). Change at 12 months is in the participants who continue in the optional extension period (atomoxetine n= 139, OEST n=155). Their data at 6 months was taken as baseline for the 12 month change.

Measures severity of the patient's overall severity of ADHD symptoms (1=normal, not at all ill; 7=among the most extremely ill patients).

Number of participants who received at least one dose of study drug and did not have a missing value. Last observation carried forward (LOCF). Change at 12 months is in the participants who continue in the optional extension period (atomoxetine n= 139, OEST n=155). Their data at 6 months was taken as baseline for the 12 month change.

CHIP-CE CRF: child rated assessment of their health status and level of functioning. Domains: Achievement, Satisfaction, Comfort, Risk Avoidance, Resilience. The majority of items assess frequency of activities or feelings using a 5-point response format (1=never, 5=always). Standard scores (T-scores) were established, with all domains and subdomains having a mean score of 50 and standard deviation of 10. Normative range is 40 to 60. Higher scores indicate better health and lower scores indicate worse health.

Number of "child" participants who received at least one dose of study drug and did not have a missing value. Last observation carried forward (LOCF). Change at 12 months is in the participants who continue in the optional extension period (atomoxetine n= 112, OEST n=124). Their data at 6 months was taken as baseline for the 12 month change.

CHIP-AE CRF: adolescent rated assessment of their health status and level of functioning. Domains: Achievement, Satisfaction, Comfort, Risk Avoidance, Resilience. The majority of items assess frequency of activities or feelings using a 5-point response format (1=never, 5=always). Standard scores (T-scores) were established, with all domains and subdomains having a mean score of 50 and standard deviation of 10. Normative range is 40 to 60. Higher scores indicate better health and lower scores indicate worse health.

Number of "adolescent" participants who received at least one dose of study drug and did not have a missing value. Last observation carried forward (LOCF). Change at 12 months is in the participants who continue in the optional extension period (atomoxetine n=27, OEST n=31). Their data at 6 months was taken as baseline for the 12 month change.

Pearson correlation coefficients were calculated on each domain at baseline, Month 6 and Change to Month 6 between parent-rated CHIP and pooled patient-rated (child and adolescent) CHIP.

All randomized participants who received at least one dose of study drug and had non-missing values.