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Table 1 Impact of the QUARISMA intervention on caesarean sections and total direct medical costsa, b

From: A cluster-randomized trial to reduce caesarean delivery rates in Quebec: cost-effectiveness analysis

 

Model 1: BMLM (crude)

Model 2: BMLM (adjusted)

Coef. (ß)

Std. Err.

95% CI

P value

Coef. (ß)

Std. Err.

95% CI

P value

All participantsc (N = 105,351 patients; 32 hospitals)c

 Effects (CS)

−0.009

0.005

(−0.019 to 0.002)

0.096

−0.005

0.005

(−0.015 to 0.004)

0.288

 Costs ($)

−185

50

(−283 to −86)

<0.001

−180

49

(−277 to −83)

<0.001

Low-risk subgroupd (N = 49,281 patients; 32 hospitals)

 Effects (CS)

−0.013

0.005

(−0.023 to −0.003)

0.013

−0.014

0.005

(−0.024 to −0.004)

0.005

 Costs ($)

−210

63

(−334 to −87)

0.001

−226

62

(−348 to −105)

<0.001

High-risk subgroupd (N = 56,070 patients; 32 hospitals)

 Effects (CS)

0.009

0.008

(−0.007 to 0.024)

0.291

0.008

0.008

(−0.008 to 0.024)

0.307

 Costs ($)

−102

76

(−250 to 47)

0.180

−97

75

(−243 to 49)

0.193

  1. BMLM bivariate multilevel linear model, CS caesarean section
  2. aAll costs given in 2013 Canadian dollars = (0.94 USD) [30]
  3. bTotal costs calculated using CIHI National Physician Database 2011–2012 physician fees for the Province of Quebec [13]
  4. cAdjusted models for all participants included the following covariates: parity, smoking, birth weight, hospital type, and women’s risk level
  5. dAdjusted subgroup models included the following covariates: parity, smoking, birth weight, and hospital type