Incidence rate is defined as the number of participants experiencing the event of interest divided by the number person-years without an event (time up to the event for participants experiencing an event, and the full study time for those without). Adverse events of interest included malignant or unspecified tumor, serious infections, opportunistic infections, serious cardiovascular events, congestive heart failure, demyelinating-like disorders, aplastic anemia, pancytopenia, thrombocytopenia, neutropenia, leucopenia, serious bleeding events, lupus and lupus-like illness, serious skin reactions, hepatic events, hypersensitivity reactions and anaphylactic reactions, malignant lymphomas, non-melanoma skin cancer, autoimmune disorders. Treatment groups are based upon actual treatment conservatively assigning participant time and events to CZP even after stopping CZP. Data for malignant or unspecified tumor as per malignancy rules has been reported in this outcome measure.

Enrolled set was defined as all participants enrolled and with an informed consent. Here, "Number of Participants Analyzed" included those who were evaluable for this outcome measure. Participants were counted in more than one arm based on the various treatments they actually received and presented. Based upon planned analysis, data is reported for Cimzia® and Comparator reporting groups only.

Incidence rate is defined as the number of participants experiencing the event of interest divided by the number person-years without an event (time up to the event for participants experiencing an event, and the full study time for those without an event of interest). Adverse events of interest (AEoI) included malignant or unspecified tumor, serious infections, opportunistic infections, serious cardiovascular events, congestive heart failure, demyelinating-like disorders, aplastic anemia, pancytopenia, thrombocytopenia, neutropenia, leucopenia, serious bleeding events, lupus and lupus-like illness, serious skin reactions, hepatic events, hypersensitivity reactions and anaphylactic reactions, malignant lymphomas, non-melanoma skin cancer, autoimmune disorders. Data for AEoIs as per acute event rules has been reported in this outcome measure where the AEoI is assigned to the treatment the participant is on at the time of the event.

Enrolled set was defined as all participants enrolled and with an informed consent. Here, "Number of Participants Analyzed" included those who were evaluable for this outcome measure. Participants were counted in more than one arm based on the various treatments they actually received and presented. Based upon planned analysis, data is reported for Cimzia®, Comparator, Overlap, Gap and Cimzia®+Overlap reporting groups only.

HBI measured 5 parameters: the general well-being (0= very well to 4= terrible), abdominal pain (0= none to 3= severe), number of liquid stools per day (0 to no maximum score), presence of an abdominal mass on physical exam (0= none to 3= definite and tender), and whether there are any complications [1 per item: joint pain (arthralgia), eye inflammation (uveitis), red nodules on skin (erythema nodosum), canker sores (aphthous ulcers), skin wound/ulcers (pyoderma gangrenosum), tear in skin of anal area (anal fissure), fluid or pus drainage from anal area (new fistula), and abscess]. The total HBI score was sum of all the 5 individual parameters, where minimum score was 0 and there was no pre-specified maximum score as it was dependent on the number of liquids stools. Higher HBI scores indicated greater disease activity. A negative change indicated less disease activity.

Enrolled Set was defined as all participants enrolled and with an informed consent. Here, "Number Analyzed" included those who were evaluable at specified time points only.

HBI response determined based on patient reported HBI total scores was defined as a drop of at least 3 points from baseline HBI total score. Patient reported HBI was composed of 4 parameters: the general well-being (0= very well to 4= terrible), abdominal pain (0= none to 3= severe), number of liquid stools per day (0 to no maximum score), and whether there are any complications [1 per item: joint pain (arthralgia), eye inflammation (uveitis), red nodules on skin (erythema nodosum), canker sores (aphthous ulcers), skin wound/ulcers (pyoderma gangrenosum), tear in skin of anal area (anal fissure), fluid or pus drainage from anal area (new fistula), and abscess]. The total HBI score was sum of all the 4 individual parameters, where minimum score was 0 and there was no pre-specified maximum score as it was dependent on the number of liquids stools. Higher HBI scores indicated greater disease activity. A negative change indicated less disease activity.

Enrolled Set was defined as all participants enrolled and with an informed consent. Here, "Number Analyzed" included those who were evaluable at specified time points only.

Physician assessment of disease severity was measured by the general well-being component of HBI score and had a score range of 0= very well to 4= terrible. Higher scores indicated greater disease activity. A negative change indicated less disease activity.

Enrolled Set was defined as all participants enrolled and with an informed consent. Here, "Number Analyzed" included those who were evaluable at specified time points only.

Patient assessment of disease severity was measured by the general well-being component of HBI score and had a score range of 0= very well to 4= terrible. Higher scores indicated greater disease activity. A negative change indicated less disease activity.

Enrolled Set was defined as all participants enrolled and with an informed consent. Here, "Number Analyzed" included those who were evaluable at specified time points only.