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Table 4 Results of regression

From: A cost function analysis of child health services in four districts in Malawi

Variable Beta coefficients (standard error)
     Preferred
  Model 1 Model 2 Model 3 Model 4
Outpatient visits 16.5 (10.2) 13.0 (10.5) 16.6 (10.5) 22.6 (8.5)*
Square of outpatient visits -0.001 -0.001 -0.01 (0.001) -0.002
(0.001) (0.001) (0.001)*
Cube of outpatient visits 4.0 × 10-8 4.0 × 10-8 4.0 × 10-8 7.0 × 10-8
(3.0 × 10-8) (3.0 × 10-8) (3.0 × 10-8) (2.0 × 10-8)*
Inpatient admissions 23.7 (21.4) 26.9 (21.3) 17.2 (66.2) 13.0 (17.6)
Square of inpatient admissions    0.006 (0.05)  
Fully immunized children   16.2 (13.1)   
CHAM facility 18,548 19,294 18,978 46,425
(14,283) (14,088) (15,263) (14,374)**
Proportion of drugs out of stock     1,862 (573)**
Constant -19,425 -20,249 -19,328 -87,976
(35,242) (34,737) (36,264) (35,425)*
N (Facilities) 24 24 24 24
Adjusted r-squared 0.625 0.636 0.603 0.755
Log likelihood -275.5 -274.4 -275.4 -269.7
Likelihood ratio test: p > chi2 compared to model 1 N/A 0.150 0.902 0.0007**
  1. Dependent variable = Total facility cost of child health services for fiscal year 2009/2010 in US dollars (natural units).
  2. *significant at p<0.05.
  3. **significant at p<0.01.