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Table 4 Logistic model for each correlation factors to baseline CD-related surgery history (has surgery history vs. no surgery history)

From: Current diagnosis and management of Crohn’s disease in China: results from a multicenter prospective disease registry

VariableOR95% CI for ORParameter estimates (standard error)Corresponding 95% CIP value
Age (years)1.0471.029, 1.0660.046 (0.009)+0.029, 0.064< 0.001*
Sex (male vs. female)1.5490.963, 2.4910.438 (0.242)+−0.037, 0.9130.071
BMI (18.5 - < 24 vs. < 18.5 kg/m2)0.8450.482, 1.481−0.169 (0.287)−0.731, 0.3930.555
BMI (≥24 vs. < 18.5 kg/m2)0.7130.225, 2.260− 0.339 (0.589)−1.493, 0.8150.565
Nicotine use (former vs. Never)0.9510.345, 2.624−0.050 (0.518)−1.065, 0.9650.923
Nicotine use (current vs. Never)1.5910.752, 3.3670.464 (0.382)+−0.285, 1.2140.225
Alcohol use (former vs. Never)2.0380.789, 5.2700.712 (0.485)+−0.238, 1.6620.142
Alcohol use (current vs. Never)2.1630.878, 5.3280.772 (0.460)+−0.130, 1.6730.093
Time from disease onset to enrollment (months)1.0091.005, 1.0130.009 (0.002)+0.005, 0.012< 0.001*
Time from initial definite diagnosis to enrollment (months)1.0151.009, 1.0210.015 (0.003)+0.009, 0.021< 0.001*
Disease behavior (B2 vs. B1)2.8151.634, 4.8481.035 (0.278)+0.491, 1.579< 0.001*
Disease behavior (B3 vs. B1)8.1474.655, 14.2612.098 (0.286)+1.538, 2.658< 0.001*
Disease behavior (B3 vs. B2)2.8951.690, 4.9591.063 (0.275)+0.525, 1.601< 0.001*
Disease location (L3 vs. L1)1.2600.761, 2.0870.231 (0.257)−0.273, 0.7360.368
Disease location (L3 vs. L2)0.7300.408, 1.304−0.315 (0.296)+−0.895, 0.2660.288
Perianal disease (yes vs. no)0.4190.247, 0.709−0.871 (0.268)+−1.397, − 0.3440.001*
  1. “No surgery history” is the reference level. +: standard error is not larger than parameter estimates. *: P < 0.05. B1 non-stricturing non-penetrating, B2 stricturing, B3 penetrating, BMI body mass index, CI confidence interval, L1 terminal ileum, L2 colon, L3 ileocolon, OR odds ratio