Table 2.

Summary of themes. Some posts fell into multiple themes, so percentages add up to more than 100%.

Theme	% (n)
Understanding the results of lab test
Meaning of lab value	74.3% (418)
Specific terminology	1.7% (9)
The effect of abnormal/inconsistent results	1.1% (6)
The cause of abnormal/inconsistent results	7.3% (41)
Interpreting doctor’s diagnosis
Confused about doctor’s suggestions/diagnosis	1.6% (9)
Seeking confirmation of doctor’s diagnosis	4.6% (26)
Concerned about doctor’s misdiagnosis	0.7% (4)
Learning about lab tests as a source of information
Inquire information about a specific lab test	34.1% (192)
Ask for lab test recommendations	1.2% (7)
Look for comparison among tests	1.6% (9)
Concerned about lab procedure	2.1% (12)
Consulting the next steps
Healthcare consultation	27.7% (156)
Treatment options	4.1% (23)
Taking medication	4.1% (23)
Life-style	21.3% (120)

^*The percetages are calculated using the number of posts in each category divided by the total number of posts (N=967).