Table 2.

Activity related to low back pain

Weeks of pregnancy	Activity	Number of people [Percentage (%)]
		Number of women with LBP = 150
12	Crouching	6 [4.0]
	Lifting heavy objects	2 [1.3]
	Picking child up	4 [2.7]
	Sitting up	15 [10.0]
	Standing up from chair	17 [11.3]
	Tossing and turning	14 [9.3]
	Walking	5 [3.3]
	Others	6 [4.0]
	No answer	84 [56.0]
		Number of women with LBP = 183
24	Crouching	10 [5.5]
	Lying down	6 [3.3]
	Picking child up	3 [1.6]
	Piggyback	2 [1.1]
	Sitting up	26 [14.2]
	Standing up from chair	27 [14.8]
	Tossing and turning	18 [9.8]
	Walking	11 [6.0]
	Washing dishes	2 [1.1]
	Others	4 [2.2]
	No answer	79 [43.2]
		Number of women with LBP = 188
30	Crouching	7 [3.7]
	Lying down	2 [1.1]
	Picking child up	2 [1.1]
	Sitting up	30 [16.0]
	Standing up from chair	27 [14.4]
	Tossing and turning	23 [12.2]
	Walking	9 [4.8]
	Others	4 [2.1]
	No answer	89 [47.3]
		Number of women with LBP = 180
36	Crouching	5 [2.8]
	Driving	4 [2.2]
	Hanging out the washing	2 [1.1]
	Lying down	4 [2.2]
	Picking child up	5 [2.8]
	Piggyback	2 [1.1]
	Sitting up	25 [13.9]
	Standing up from chair	26 [14.4]
	Tossing and turning	37 [20.6]
	Walking	16 [8.9]
	Others	1 [0.6]
	No answer	56 [31.1]

LBP low back pain