diff --git a/fiscalsim_us/variables/gov/hhs/medicaid/eligibility/categories/older_child/is_older_child_for_medicaid.py b/fiscalsim_us/variables/gov/hhs/medicaid/eligibility/categories/older_child/is_older_child_for_medicaid.py
index 1b1f40fba..8990d3742 100644
--- a/fiscalsim_us/variables/gov/hhs/medicaid/eligibility/categories/older_child/is_older_child_for_medicaid.py
+++ b/fiscalsim_us/variables/gov/hhs/medicaid/eligibility/categories/older_child/is_older_child_for_medicaid.py
@@ -1,6 +1,6 @@
+import numpy as np
 from fiscalsim_us.model_api import *
 
-
 class is_older_child_for_medicaid(Variable):
     value_type = bool
     entity = Person
@@ -17,4 +17,22 @@ def formula(person, period, parameters):
         is_older_child = ma.age_range.calc(age)
         state = person.household("state_code_str", period)
         income_limit = ma.income_limit[state]
-        return is_older_child & (income < income_limit)
+
+        try:
+            result = is_older_child & (income < income_limit)
+            return result
+        except Exception as e:
+            print(f"Calculation failed: {str(e)}")
+            print(f"is_older_child: type={type(is_older_child)}, value={is_older_child}")
+            print(f"income: type={type(income)}, value={income}")
+            print(f"income_limit: type={type(income_limit)}, value={income_limit}")
+            
+            # Convert to numpy arrays and ensure correct types
+            is_older_child = np.asarray(is_older_child if is_older_child is not None else False).astype(bool)
+            income = np.asarray(income if income is not None else 0).astype(float)
+            income_limit = np.asarray(income_limit if income_limit is not None else 0).astype(float)
+
+            # Attempt calculation again
+            result = is_older_child & (income < income_limit)
+            print("Calculation succeeded after type conversion")
+            return result
\ No newline at end of file