Table 4

Subgroup analysis for age group 75 years and older: proportional annual change in predicted mean number of contacts with an out-of-hours PCS/1000 inhabitants, per year and neighbourhood SES stratum*; and unstandardised regression coefficients for difference-in-difference year (2016 vs 2013) and neighbourhood SES (very low vs very high)*

Year* Neighbourhood SES Total contactsHigh-urgency contactsLow-urgency contactsContacts during night timeContacts evening, weekend, holidaysHome visitsConsultationsTelephone consultations
Proportion change predicted meanProportion change predicted meanProportion change predicted meanProportion change predicted meanProportion change predicted meanProportion change predicted meanProportion change predicted meanProportion change predicted mean
Very low SES
 2013refrefrefrefrefrefrefref
 20140.991.020.961.010.990.971.020.97
 20151.011.080.951.041.010.941.060.98
 20161.101.230.961.141.090.941.161.09
Low SES
 2013refrefrefrefrefrefrefref
 20140.981.000.961.020.980.931.010.96
 20151.001.070.931.051.000.931.030.99
 20161.041.180.901.091.040.911.081.03
High SES
 2013refrefrefrefrefrefrefref
 20140.991.010.971.020.990.961.010.98
 20151.011.080.941.071.010.961.041.00
 20161.071.210.921.171.060.951.101.07
Very high SES
 2013refrefrefrefrefrefrefref
 20140.970.980.960.980.970.931.010.93
 20151.001.080.911.031.000.931.050.96
 20161.051.170.911.101.040.931.091.02
Difference-in-difference†B (95% CI)B (95% CI)B (95% CI)B (95% CI)B (95% CI)B (95% CI)B (95% CI)B (95% CI)
−1.4 (−3.0 to 0.3) −1.1 (−2.1 to −0.2) −0.3 (−1.0 to 0.5)−0.1 (−0.4 to 0.1)−1.2 (−2.7 to 0.3)0.1 (−0.1 to 0.3)−0.9 (−1.8 to 0.1)−0.6 (−1.3 to  0.1)
  • *Multilevel linear regression models controlled for neighbourhood demographic composition, main effects for year and neighbourhood SES, and between-PCS variance.

  • †Statistical significance: printed in bold if p≤0.05.

  • PCS, primary care service; SES, socioeconomic status.