Table 2

Baseline characteristics: comparing patients with/without follow-up

All patients (n= 519)Patients not returning for follow-up (n= 207)Patients returning for follow-up (n= 312)P value
Gender, female [n (%)]315 (60.7)121 (58.4)194 (62.2)0.395
Age [mean (SD)]35.7 (24.2)31.4 (22.5)38.5 (24.9)0.001
Caucasian [n (%)]478/504 (94.8)188/203 (92.6)290/301 (96.4)0.063
Patient reported allergic history [n (%)]345 (66.5)136 (65.7)209 (67.0)0.761
Smoking status [n (%)]0.414
 Never359 (69.2)149 (72.0)210 (67.3
 Former105 (20.2)36 (17.4)69 (22.1)
 Current55 (10.6)22 (10.6)33 (10.6)
FEV1 as % predicted [mean (SD)]94.6 (20.4)97.1 (19.5)92.9 (20.8)0.029
Patient taking any controller medication [n (%)]433 (83.4)165 (79.7)268 (85.9)0.063
ICS alone [n (%)]132 (25.4)62 (30.0)70 (22.4)0.054
LTRA alone [n (%)]17 (3.3)7 (3.4)10 (3.2)0.912
Combination therapy (ICS + LABA) [n (%)]270 (52.0)94 (45.4)176 (56.4)0.014
Rescue medication in doses/day [mean (SD)]0.597 (1.233)0.524 (1.113)0.646 (1.306)0.271
All patients (n= 519)Patients not returning for follow-up (n= 207)Patients returning for follow-up (n= 312)P value
Gender, female [n (%)]315 (60.7)121 (58.4)194 (62.2)0.395
Age [mean (SD)]35.7 (24.2)31.4 (22.5)38.5 (24.9)0.001
Caucasian [n (%)]478/504 (94.8)188/203 (92.6)290/301 (96.4)0.063
Patient reported allergic history [n (%)]345 (66.5)136 (65.7)209 (67.0)0.761
Smoking status [n (%)]0.414
 Never359 (69.2)149 (72.0)210 (67.3
 Former105 (20.2)36 (17.4)69 (22.1)
 Current55 (10.6)22 (10.6)33 (10.6)
FEV1 as % predicted [mean (SD)]94.6 (20.4)97.1 (19.5)92.9 (20.8)0.029
Patient taking any controller medication [n (%)]433 (83.4)165 (79.7)268 (85.9)0.063
ICS alone [n (%)]132 (25.4)62 (30.0)70 (22.4)0.054
LTRA alone [n (%)]17 (3.3)7 (3.4)10 (3.2)0.912
Combination therapy (ICS + LABA) [n (%)]270 (52.0)94 (45.4)176 (56.4)0.014
Rescue medication in doses/day [mean (SD)]0.597 (1.233)0.524 (1.113)0.646 (1.306)0.271

SD, standard deviation; ICS, inhaled corticosteroid; LTRA, leukotriene receptor antagonist; LABA, long-acting B-agonist; FEV1, forced expiratory volume in 1 s.

Table 2

Baseline characteristics: comparing patients with/without follow-up

All patients (n= 519)Patients not returning for follow-up (n= 207)Patients returning for follow-up (n= 312)P value
Gender, female [n (%)]315 (60.7)121 (58.4)194 (62.2)0.395
Age [mean (SD)]35.7 (24.2)31.4 (22.5)38.5 (24.9)0.001
Caucasian [n (%)]478/504 (94.8)188/203 (92.6)290/301 (96.4)0.063
Patient reported allergic history [n (%)]345 (66.5)136 (65.7)209 (67.0)0.761
Smoking status [n (%)]0.414
 Never359 (69.2)149 (72.0)210 (67.3
 Former105 (20.2)36 (17.4)69 (22.1)
 Current55 (10.6)22 (10.6)33 (10.6)
FEV1 as % predicted [mean (SD)]94.6 (20.4)97.1 (19.5)92.9 (20.8)0.029
Patient taking any controller medication [n (%)]433 (83.4)165 (79.7)268 (85.9)0.063
ICS alone [n (%)]132 (25.4)62 (30.0)70 (22.4)0.054
LTRA alone [n (%)]17 (3.3)7 (3.4)10 (3.2)0.912
Combination therapy (ICS + LABA) [n (%)]270 (52.0)94 (45.4)176 (56.4)0.014
Rescue medication in doses/day [mean (SD)]0.597 (1.233)0.524 (1.113)0.646 (1.306)0.271
All patients (n= 519)Patients not returning for follow-up (n= 207)Patients returning for follow-up (n= 312)P value
Gender, female [n (%)]315 (60.7)121 (58.4)194 (62.2)0.395
Age [mean (SD)]35.7 (24.2)31.4 (22.5)38.5 (24.9)0.001
Caucasian [n (%)]478/504 (94.8)188/203 (92.6)290/301 (96.4)0.063
Patient reported allergic history [n (%)]345 (66.5)136 (65.7)209 (67.0)0.761
Smoking status [n (%)]0.414
 Never359 (69.2)149 (72.0)210 (67.3
 Former105 (20.2)36 (17.4)69 (22.1)
 Current55 (10.6)22 (10.6)33 (10.6)
FEV1 as % predicted [mean (SD)]94.6 (20.4)97.1 (19.5)92.9 (20.8)0.029
Patient taking any controller medication [n (%)]433 (83.4)165 (79.7)268 (85.9)0.063
ICS alone [n (%)]132 (25.4)62 (30.0)70 (22.4)0.054
LTRA alone [n (%)]17 (3.3)7 (3.4)10 (3.2)0.912
Combination therapy (ICS + LABA) [n (%)]270 (52.0)94 (45.4)176 (56.4)0.014
Rescue medication in doses/day [mean (SD)]0.597 (1.233)0.524 (1.113)0.646 (1.306)0.271

SD, standard deviation; ICS, inhaled corticosteroid; LTRA, leukotriene receptor antagonist; LABA, long-acting B-agonist; FEV1, forced expiratory volume in 1 s.

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