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Table 4 CSR evolution and determinants. Belgium 2001–4.

From: Screening for inter-hospital differences in cesarean section rates in low-risk deliveries using administrative data: An initiative to improve the quality of care

  OR P
a) National trend adjusted for age group   
Semestrial trend (basis 1st semester 2001) 1.02 (1.02; 1.02) <0.01
Age group   
20–24 years vs < 20 years 1.11 (1.11; 1.11) <0.01
25–29 years vs < 20 years 1.30 (1.30; 1.30) <0.01
30–34 years vs < 20 years 1.53 (1.53; 1.53) <0.01
35–39 years vs < 20 years 1.86 (1.86; 1.86) <0.01
40 years+ vs < 20 years 2.41 (2.41; 2.41) <0.01
b) National trend of CSR and determinants   
Semestrial trend (basis 1st semester 2001) 1.02 (1.01; 1.02) <0.01
Age group   
20–24 years vs < 20 years 1.12 (1.09; 1.22) 0.02
25–29 years vs < 20 years 1.31 (1.20; 1.43) <0.01
30–34 years vs < 20 years 1.55 (1.42; 1.69) <0.01
35–39 years vs < 20 years 1.89 (1.73; 2.07) <0.01
40 years+ vs < 20 years 2.45 (2.21; 2.71) <0.01
Gestational age   
37–38 weeks vs 39–40 weeks 1.93 (1.87; 2.00) <0.01
41–42 weeks vs 39–40 weeks 1.31 (1.26; 1.36) <0.01
Residence   
Antwerp vs National 1.00 (0.94; 1.05) 0.73
Brussels vs National 0.89 (0.84; 0.94) <0.01
Brabant (F) vs National 0.97 (0.91; 1.05) 0.29
Brabant (W) vs National 0.82 (0.75; 0.89) <0.01
West Flanders vs National 1.10 (1.02; 1.18) 0.01
East Flanders vs National 1.06 (1.00; 1.13) <0.01
Hainaut vs National 0.94 (0.88; 1.00) <0.01
Liège vs National 1.34 (1.25; 1.44) <0.01
Limburg vs National 1.24 (1.14; 1.34) <0.01
Luxembourg vs National 1.01 (0.86; 1.18) 0.92
Namur vs National 0.83 (0.77; 0.90) <0.01
Abroad vs National 0.93 (0.79; 1.09) 0.20
Admission day   
Monday vs Sunday 1.22 (1.15; 1.29) <0.01
Tuesday vs Sunday 1.13 (1.06; 1.19) <0.01
Wednesday vs Sunday 1.17 (1.10; 1.23) <0.01
Thursday vs Sunday 1.17 (1.11; 1.24) <0.01
Friday vs Sunday 0.85 (0.80; 0.90) <0.01
Saturday vs Sunday 0.55 (0.52; 0.59) <0.01
  1. OR: odds ratio; () 95% confidence interval;