5-items that assess general well-being, abdominal pain, diarrhea, abdominal mass, and complications. Score is total of 1) subject well-being (0=very well; 4=terrible); 2) abdominal pain (0=none; 3=severe); 3) diarrhea (number of time per day); 4) abdominal mass (0=none; 3=definite and tender); 5) complications (number). Maximum total score for HBI is not specified, is dependent on number of diarrhea times each day and number of complications. Clinical remission = HBI less than 5. Highest total score at Baseline was 47. Missing data were imputed using non-responder imputation (NRI).

Intent-to-treat (ITT) population, defined as all participants who received at least 1 injection of adalimumab. Missing data were imputed using non-responder imputation; participants who discontinued the study prior to Week 20 and participants with no score on the Harvey-Bradshaw Index (missing value) at Week 20 were counted as "no" for remission.

5-items that assess general well-being, abdominal pain, diarrhea, abdominal mass, and complications. Score is total of 1) subject well-being (0=very well; 4=terrible); 2) abdominal pain (0=none; 3=severe); 3) diarrhea (number of time per day); 4) abdominal mass (0=none; 3=definite and tender); 5) complications (number). Participants who had a decrease from Baseline of at least 3 points in HBI total score were considered responders. Missing data were imputed using non-responder imputation (NRI).

ITT Population, defined as all participants who received at least 1 injection of adalimumab. Missing data were imputed using non-responder imputation; participants who discontinued the study prior to Week 20 and participants with no score on the Harvey-Bradshaw Index (missing value) at Week 20 were counted as "no" for response.

A count of the number of cutaneous fistulas draining was performed during each physical examination. Among participants who had draining fistulas at Baseline, the number of participants who had a reduction in the number of draining fistulas of at least 50% from Baseline to Week 20 of treatment was determined. Fistulas were classified as abdominal or perianal.

171 participants in the ITT population (participants who received at least 1 injection of adalimumab) had draining fistulas at baseline. Data were available for 148 of the 171 participants at Week 20 of treatment. Missing values were not imputed.

Number of participants who had EIM at baseline and had resolution of those manifestations at Week 20. EIM were skin lesions, eye lesions, joint complaints, CD-related hepatic disease, thrombosis, and nephrolithiasis. EIMs were determined by physical examination.

497 participants who received at least 1 injection of adalimumab (ITT population) had baseline EIM data. Missing data were imputed using non-responder imputation; participants who discontinued the study before Week 20 and participants with missing value at Week 20 were counted as "no" for resolution.

10-item assessment of health-related quality of life (QoL) in patients with inflammatory bowel disease. Participant marks an option from 1 to 7 for each item. For some items, 1=None of the time; for other items, 1=All of the time. Value for all items are summed. Total score=10 to 70; a high score=good quality of life (QoL). An increase in score indicates improvement. An absolute change in the SIBDQ score of 9 is considered a minimum clinically important difference (MCID) for a patient.

The ITT population, defined as participants who received at least 1 injection of adalimumab, was used in the analysis. 907 participants had data available for calculating change in total score of SIBDQ. Missing values were imputed using LOCF.

Percent Work Time Missed (Absenteeism) due to CD is one component of the Work Productivity and Activity Impairment (WPAI) Questionnaire. Score of 0% = no impairment. A decrease in the mean indicates improvement.

The ITT population, defined as participants who received at least 1 injection of adalimumab, was used in the analysis. 369 participants had data available for calculating change in Percent Work Time Missed. Missing values were imputed using LOCF.

Percent impairment while working is a component of the Work Productivity and Activity Impairment measure. A score of 0% = no impairment. A decrease in mean score indicates lessening of impairment.

The ITT population, defined as participants who received at least 1 injection of adalimumab, was used in the analysis. Data were available for 382 participants for the calculation of mean change in Percent Impairment While Working from Baseline to Week 20. Data were imputed using LOCF.

6-items that assess impairment in work productivity and daily activity during the 7 days before the assessment. It measures the percentage of overall impairment in work productivity and daily activity due to CD. A WPAI score of 0% = no impairment and a score of 100% = total loss of work productivity or activity. An absolute change in WPAI score of 7% is considered the minimum clinically important difference (MCID).

The ITT population, defined as participants who received at least 1 injection of adalimumab, was used in the analysis. Data were available for 346 participants for the calculation of mean change in Overall Impairment from Baseline to Week 20. Data were imputed using LOCF.

Daily activity is one component of the Work Productivity and Activity Impairment Questionnaire. 0% = no impairment. A decrease in the mean indicates improvement.

The ITT population, defined as participants who received at least 1 injection of adalimumab, was used. Data for 902 participants were available for calculating change from Baseline at Week 20 of treatment. Missing values were imputed by LOCF.