SENECA_PA_GARDEN

The original variables were based on intensity, time (hrs per day) and proportion (months per year). Creation rule: Assign median value of each category of time to all subjects who fall within this category. For <0.5 assign 0.25 (median of 0 to 0.5) and for >4 hrs assign maximum of median value of those in EPIC Elderly and Zutphen with hrs/week >=4 (4.5).

Contact round 1:

PA_GARDEN is based on SENECA variables GARDENIN (“Gardening”)

IF GARDENIN IN(8,9,.) THEN HRSGARD=.;

IF GARDENIN = 0 THEN HRSGARD = 0;

IF GARDENIN = 1 THEN HRSGARD = 0.25;

IF GARDENIN = 2 THEN HRSGARD = 0.75;

IF GARDENIN = 3 THEN HRSGARD = 1.5;

IF GARDENIN = 4 THEN HRSGARD = 2.5;

IF GARDENIN = 5 THEN HRSGARD = 3.5;

IF GARDENIN = 6 THEN HRSGARD = 4.5;

IF HRSGARD=. THEN PA_GARDEN=.;

ELSE PA_GARDEN= (7 * HRSGARD);

Contact round 2:

PA_GARDEN is based on SENECA variable FHRSGARD (“Hours per week spent on gardening”)

IF FHRSGARD IN(8.8, 9.9, .) THEN FHRSGARD=.;

IF FHRSGARD =. THEN PA_GARDEN=.;

ELSE PA_GARDEN = (FHRSGARD);

Contact round 3:

PA_GARDEN is based on SENECA variable SHRSGARD (“Hours per week spent on gardening”)

IF SHRSGARD =. THEN PA_GARDEN=.;

ELSE PA_GARDEN = (SHRSGARD);

EPIC_PA_GARDEN

Variable M_GARD was used for the production of PA_GARDEN according to the following definition and rule.

EPIC var definition(s):
M_GARD: shows METS gardening (is the mean of MS_GARD and MW_GARD)

Coding rule:
Variable PA_GARDEN shows hours per week of gardening. 

Coding rule in STATA:
-gen PA_GARDEN = M_GARD/4

-replace PA_GARDEN = 9999 if PA_GARDEN==.

NOTE: Variable M_GARD was constructed as the mean of MS_GARD and MW_GARD (MS for summer gardening and MW for winter gardening and correspond the to METS for the hours per week spent in each gardening activity). The initial EPIC variables (HS_GARD and HW_GARD) corresponding to hours per week spent gardening were then multiplied by 4 (taking into account the average met hours value for all gardening activities).