diff --git a/mod/quiz/report/statistics/report.php b/mod/quiz/report/statistics/report.php
index 36cc05357f8..690d016eac9 100644
--- a/mod/quiz/report/statistics/report.php
+++ b/mod/quiz/report/statistics/report.php
@@ -449,13 +449,32 @@ class quiz_statistics_report extends quiz_default_report {
      *                                                                                               variants.
      */
     protected function output_quiz_structure_analysis_table($questionstats) {
-        $tooutput = array();
         $limitvariants = !$this->table->is_downloading();
         foreach ($questionstats->get_all_slots() as $slot) {
             // Output the data for these question statistics.
-            $tooutput = array_merge($tooutput, $questionstats->structure_analysis_for_one_slot($slot, $limitvariants));
+            $structureanalysis = $questionstats->structure_analysis_for_one_slot($slot, $limitvariants);
+            if (is_null($structureanalysis)) {
+                $this->table->add_separator();
+            } else {
+                foreach ($structureanalysis as $row) {
+                    $bgcssclass = '';
+                    // The only way to identify in this point of the report if a row is a summary row
+                    // is checking if it's a instance of calculated_question_summary class.
+                    if ($row instanceof \core_question\statistics\questions\calculated_question_summary) {
+                        // Apply a custom css class to summary row to remove border and reduce paddings.
+                        $bgcssclass = 'quiz_statistics-summaryrow';
+
+                        // For question that contain a summary row, we add a "hidden" row in between so the report
+                        // display both rows with same background color.
+                        $this->table->add_data_keyed([], 'd-none hidden');
+                    }
+
+                    $this->table->add_data_keyed($this->table->format_row($row), $bgcssclass);
+                }
+            }
         }
-        $this->table->format_and_add_array_of_rows($tooutput);
+
+        $this->table->finish_output(!$this->table->is_downloading());
     }
 
     /**
diff --git a/mod/quiz/styles.css b/mod/quiz/styles.css
index deabee0a9e3..2aa42f22d6b 100644
--- a/mod/quiz/styles.css
+++ b/mod/quiz/styles.css
@@ -614,6 +614,12 @@ table.quizreviewsummary td.cell {
     border-bottom: lightgrey solid 0.2em;
 }
 
+#page-mod-quiz-report tr.quiz_statistics-summaryrow td.cell {
+    padding-top: 1px;
+    padding-bottom: 1px;
+    border-top: none;
+}
+
 /** Mod quiz edit **/
 #page-mod-quiz-edit .statusbar {
     margin: 0.6em 0.4em;