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Table 4 PR and APR for response rates by demographic characteristics for the NMS 2014 and 2018

From: Trends in response rates and respondent characteristics in five National Maternity Surveys in England during 1995–2018

Year of survey   2014   2018
Number sampled   N = 9786   N = 15,528
 PR95%CIAPR95%CIPR95%CIAPR95%CI
Age (years)a
 16–240.580.54, 0.630.720.65, 0.790.510.46, 0.560.680.61, 0.76
 25–290.820.78, 0.870.880.81, 0.950.770.72, 0.820.860.80, 0.93
 30–341111
  ≥ 351.020.97, 1.081.010.94, 1.091.101.04, 1.171.111.03, 1.19
Marital statusa
 Married1111
 Joint registration (same address)0.860.82, 0.900.910.85, 0.980.760.72, 0.810.830.77, 0.88
 Joint registration (different address)0.510.46, 0.560.610.54, 0.690.380.33, 0.430.480.41, 0.55
 Sole registration0.480.42, 0.560.570.48, 0.680.410.34, 0.490.520.42, 0.63
Country of birtha
 UK1111
 Not UK0.840.80, 0.890.810.75, 0.870.740.70, 0.790.720.67, 0.77
Index of multiple deprivationa
 1st (most deprived)0.550.52, 0.590.680.62, 0.750.420.39, 0.450.560.51, 0.62
 2nd0.720.68, 0.770.830.75, 0.910.620.57, 0.670.760.69, 0.83
 3rd0.850.80, 0.900.920.84, 1.010.780.73, 0.840.880.80, 0.96
 4th0.910.85, 0.960.950.86, 1.040.900.84, 0.970.960.87, 1.04
 5th (least deprived)1111
  1. a Each variable is mutually adjusted in the analysis