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Table 2 Overall comparison site resident demographics at four time points: pre-intervention, beginning of intervention period, end of intervention period, and post-intervention

From: Data for improvement and clinical excellence: report of an interrupted time series trial of feedback in long-term care

Demographic characteristics July 2008 January 2009 January 2010 July 2010
  (n= 132) (n= 122) (n= 114) (n= 145)
Age (in years)     

Mean 79.5 79.4 78.7 80.8

Standard deviation 13.6 13.7 14.6 13.5

Range 49 to 102 49 to 102 38 to 100 42 to 101
Sex No. % No. % No. % No. %

Male 38 28.8 41 33.6 38 33.3 36 30.8

Female 94 71.2 81 66.4 76 66.7 81 69.2
Marital status No. % No. % No. % No. %

Never married 17 12.9 14 11.5 16 14.0 13 11.1

Married 36 27.3 32 26.2 31 27.2 28 23.9

Widowed 61 46.2 55 45.1 52 45.6 61 52.1

Separated 2 1.5 2 1.6 1 0.9 1 0.9

Divorced 12 9.1 14 11.5 9 7.9 12 10.3

Unknown 4 3.0 5 4.4 2 1.7