I have tried the conditional sum to calculate quartely results for the
following:

Measures Month Population Sample Population Missing/Invalid
Population Numerator Missing/Invalid Numerator Denominator Observed Rate
Discharge instructions JAN 2005 63 63 0 2 0 48 4%
Discharge instructions FEB 2005 69 69 0 7 0 48 15%
Discharge instructions MAR 2005 72 72 0 6 0 50 12%
LVF assessment JAN 2005 63 63 0 51 0 60 85%
LVF assessment FEB 2005 69 69 0 56 0 65 86%
LVF assessment MAR 2005 72 72 0 59 0 66 89%
ACEI or ARB for LVSD JAN 2005 63 63 0 16 0 24 67%
ACEI or ARB for LVSD FEB 2005 69 69 0 15 0 26 58%
ACEI or ARB for LVSD MAR 2005 72 72 0 25 0 37 68%
Adult smoking cessation advice/counseling JAN 2005 63 63 0 2 0 7 29%
Adult smoking cessation advice/counseling FEB 2005 69 69 0 2 0 5 40%
Adult smoking cessation advice/counseling MAR 2005 72 72 0 5 0 9 56%
Discharge instructions APR 2005 65 65 0 7 0 51 14%
Discharge instructions MAY 2005 62 62 0 13 0 46 28%
Discharge instructions JUN 2005 56 56 0 10 0 40 25%
LVF assessment APR 2005 65 65 0 58 0 62 94%
LVF assessment MAY 2005 62 62 0 53 0 57 93%
LVF assessment JUN 2005 56 56 0 44 0 50 88%
ACEI or ARB for LVSD APR 2005 65 65 0 19 0 35 54%
ACEI or ARB for LVSD MAY 2005 62 62 0 20 0 32 63%
ACEI or ARB for LVSD JUN 2005 56 56 0 18 0 28 64%
Adult smoking cessation advice/counseling APR 2005 65 65 0 2 0 7 29%
Adult smoking cessation advice/counseling MAY 2005 62 62 0 4 0 7 57%
Adult smoking cessation advice/counseling JUN 2005 56 56 0 3 0 6 50%


But I am unable to say I want Measures=Discharge Instructions, Month to
equal, Jan 2005, Feb 2005, Mar 2005.

Please help
--
Thanks,
Andy