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Table 1 Bivariate analysis of the relationship between each variable and the morbidity for neonatal early-onset group B streptococcus-related diseases

From: Risk factors for neonatal early-onset group B streptococcus-related diseases after the implementation of a universal screening program in Taiwan

   No GBS-related disease GBS-related diseases  
n % n % n % p-value
Total 154,088 100.00 154,064 99.98 24 0.02  
GBS screening result        0.016
 GBS negative 123,912 80.42 123,898 99.99 14 0.01  
 GBS positive 30,176 19.58 30,166 99.97 10 0.03  
Maternal age        0.132
 < 35 years 122,290 79.36 122,274 99.99 16 0.01  
35 years 31,798 20.64 31,790 99.97 8 0.03  
 Mean age (Mean ± SD) 30.89 4.51 30.89 4.51 31.83 4.18 0.308a
Maternal nationality        NV
 Taiwan 151,899 98.58 151,875 99.98 24 0.02  
 Foreign 2189 1.42 2189 100.00 0 0.00  
Maternal education        0.934
 High school and below 46,955 30.47 46,947 99.98 8 0.02  
 College and above 107,133 69.53 107,117 99.99 16 0.01  
Monthly salary(NTD)        0.399
28,800b 93,227 60.50 93,215 99.99 12 0.01  
28,801 60,861 39.50 60,849 99.98 12 0.02  
Degree of urbanization        NV
 1 32,981 21.40 32,981 100.00 0 0.00  
 2 48,994 31.80 48,986 99.98 8 0.02  
 3~ 7 72,113 46.80 72,097 99.98 16 0.02  
Aboriginal        NV
 No 149,288 96.88 149,264 99.98 24 0.02  
 Yes 4800 3.12 4800 100.00 0 0.00  
CCIc        0.035
 0 133,218 86.46 133,201 99.99 17 0.01  
1 20,870 13.54 20,863 99.97 7 0.03  
PROMd        0.056
 No 148,433 96.33 148,412 99.99 21 0.01  
 Yes 5655 3.67 5652 99.95 3 0.05  
Preterm birth        0.024
 No 150,077 97.40 150,056 99.99 21 0.01  
 Yes 4011 2.60 4008 99.93 3 0.07  
Infant birth weight        0.597
 <2,500 6534 4.24 6533 99.98 1 0.02  
 2,500-3,499 126426 82.05 126408 99.99 18 0.01  
3,500 21128 13.71 21123 99.98 5 0.02  
Previous infant(s) with GBS-related diseases        NV
 No 154072 99.99 154048 99.98 24 0.02  
 Yes 16 0.01 16 100.00 0 0.00  
Level of medical institution        0.749
 Medical center 26052 16.91 26046 99.98 6 0.02  
 Regional hospital 43383 28.15 43377 99.99 6 0.01  
 District hospital 39213 25.45 39208 99.99 5 0.01  
 Primary clinic 45440 29.49 45433 99.98 7 0.02  
Ownership of medical institution        1.000
 Public 15003 9.74 15001 99.99 2 0.01  
 Private 139085 90.26 139063 99.98 22 0.02  
  1. at-test
  2. bIncluding low-income households
  3. cCCI Charlson comorbidity index
  4. dPROM Premature rupture of membrane