Okay, the user wants me to translate "co-variates" into Thai. Let me check the rules again. The first rule says to translate all content into Thai. The second rule says if it's already in Thai, leave it as is. The third rule is to provide only the translation without explanations.
So, "co-variates" is an English term. I need to find the correct Thai translation. The term "co-variates" is related to statistics or mathematics, referring to variables that vary together. In Thai, the term might be translated as "ตัวแปรร่วม" or "ตัวแปรที่เปลี่ยนแปลงร่วมกัน". Let me confirm the standard translation.
I think "ตัวแปรร่วม" is the commonly used term in Thai academic contexts. I should use that. Make sure there's no explanation, just the translation. Alright, that's it.