Finally, I have looked at the various demographic indicators in the trusts. Not sure if this is so helpful. For gender and age the distributions are very similar. I have computeda few coefficients of association which are small. For ehtnic group there is a bit of variation: whites are low in London, then there are regions in the 65-ish percentage and regions on the 80s percentage. I would be concerned if there is a mask ethnic group iunteraction, but there is not, so this variation is interesting in itself, but has not effect on which masks fits best. . tabulate trust sex, gamma row taub V +----------------+ | Key | |----------------| | frequency | | row percentage | +----------------+ | Question_13_Gender DHSC_Trust_Region | Female Male | Total ----------------------+----------------------+---------- East of England | 3,254 766 | 4,020 | 80.95 19.05 | 100.00 ----------------------+----------------------+---------- London | 5,331 1,182 | 6,513 | 81.85 18.15 | 100.00 ----------------------+----------------------+---------- Midlands | 10,743 1,532 | 12,275 | 87.52 12.48 | 100.00 ----------------------+----------------------+---------- North East and Yorksh | 7,153 1,166 | 8,319 | 85.98 14.02 | 100.00 ----------------------+----------------------+---------- North West | 3,161 615 | 3,776 | 83.71 16.29 | 100.00 ----------------------+----------------------+---------- South East | 9,474 1,981 | 11,455 | 82.71 17.29 | 100.00 ----------------------+----------------------+---------- South West | 484 53 | 537 | 90.13 9.87 | 100.00 ----------------------+----------------------+---------- Total | 39,600 7,295 | 46,895 | 84.44 15.56 | 100.00 Cramér's V = 0.0678 gamma = -0.0056 ASE = 0.009 Kendall's tau-b = -0.0026 ASE = 0.004 | Question_12_Age DHSC_Trust_Region | 18-24 25-34 35-44 45-54 | Total ----------------------+--------------------------------------------+---------- East of England | 628 1,107 909 826 | 4,027 | 15.59 27.49 22.57 20.51 | 100.00 ----------------------+--------------------------------------------+---------- London | 795 2,083 1,553 1,258 | 6,501 | 12.23 32.04 23.89 19.35 | 100.00 ----------------------+--------------------------------------------+---------- Midlands | 1,529 3,335 2,921 2,706 | 12,266 | 12.47 27.19 23.81 22.06 | 100.00 ----------------------+--------------------------------------------+---------- North East and Yorksh | 1,545 2,485 1,915 1,503 | 8,320 | 18.57 29.87 23.02 18.06 | 100.00 ----------------------+--------------------------------------------+---------- North West | 614 1,151 828 662 | 3,775 | 16.26 30.49 21.93 17.54 | 100.00 ----------------------+--------------------------------------------+---------- South East | 1,631 3,456 2,591 2,270 | 11,428 | 14.27 30.24 22.67 19.86 | 100.00 ----------------------+--------------------------------------------+---------- South West | 23 143 110 147 | 537 | 4.28 26.63 20.48 27.37 | 100.00 ----------------------+--------------------------------------------+---------- Total | 6,765 13,760 10,827 9,372 | 46,854 | 14.44 29.37 23.11 20.00 | 100.00 | Question_12_Age DHSC_Trust_Region | 55-64 65-74 | Total ----------------------+----------------------+---------- East of England | 496 61 | 4,027 | 12.32 1.51 | 100.00 ----------------------+----------------------+---------- London | 709 103 | 6,501 | 10.91 1.58 | 100.00 ----------------------+----------------------+---------- Midlands | 1,627 148 | 12,266 | 13.26 1.21 | 100.00 ----------------------+----------------------+---------- North East and Yorksh | 804 68 | 8,320 | 9.66 0.82 | 100.00 ----------------------+----------------------+---------- North West | 489 31 | 3,775 | 12.95 0.82 | 100.00 ----------------------+----------------------+---------- South East | 1,334 146 | 11,428 | 11.67 1.28 | 100.00 ----------------------+----------------------+---------- South West | 102 12 | 537 | 18.99 2.23 | 100.00 ----------------------+----------------------+---------- Total | 5,561 569 | 46,854 | 11.87 1.21 | 100.00 Cramér's V = 0.0438 gamma = -0.0178 ASE = 0.005 Kendall's tau-b = -0.0142 ASE = 0.004 | Question_14_Ethnicity DHSC_Trust_Region | white black asian mixed | Total ----------------------+--------------------------------------------+---------- East of England | 2,574 486 811 156 | 4,027 | 63.92 12.07 20.14 3.87 | 100.00 ----------------------+--------------------------------------------+---------- London | 2,328 1,761 2,037 398 | 6,524 | 35.68 26.99 31.22 6.10 | 100.00 ----------------------+--------------------------------------------+---------- Midlands | 8,568 1,164 2,110 435 | 12,277 | 69.79 9.48 17.19 3.54 | 100.00 ----------------------+--------------------------------------------+---------- North East and Yorksh | 6,712 414 942 258 | 8,326 | 80.61 4.97 11.31 3.10 | 100.00 ----------------------+--------------------------------------------+---------- North West | 3,035 254 401 87 | 3,777 | 80.35 6.72 10.62 2.30 | 100.00 ----------------------+--------------------------------------------+---------- South East | 7,077 1,163 2,696 529 | 11,465 | 61.73 10.14 23.52 4.61 | 100.00 ----------------------+--------------------------------------------+---------- South West | 459 20 51 7 | 537 | 85.47 3.72 9.50 1.30 | 100.00 ----------------------+--------------------------------------------+---------- Total | 30,753 5,262 9,048 1,870 | 46,933 | 65.53 11.21 19.28 3.98 | 100.00 Cramér's V = 0.1785 gamma = -0.1303 ASE = 0.006 Kendall's tau-b = -0.0853 ASE = 0.004