Table 1.

Measurement indicators impacting pelvic floor muscle and criteria for categorization.

Occupational category	Occupation in this study refers to a woman’s daily job. It was categorized according to the potential impacts of the job on the PFM as the follows: Brainwork refers to office work that had least impact on PFM. Mild manual labor refers to manual work in sitting position without heavy loads. Medium manual labor refers to manual work in standing position or moving with occasional heavy loads. Heavy manual labor refers to manual work with heavy loads that needs frequent or continuous body movement and high abdomen pressure to resist gravity.
Working posture	Refers to woman’s body posture when she is doing a job and is categorized according to the potential impacts of the job to the PFM as the follows: Sitting refers to a situation that a job is undertaken dominantly in sitting position. Standing refers to a situation that a job is undertaken dominantly in standing position. Others refers to a situation that a job is undertaken with posture shifting among sitting, standing, squatting, and bending, etc.
Toilet type	Refers to the type of toilet that a woman used for most of their defecating and is categorized according to the potential impacts on the PFM as squatting toilet dominant, sitting toilet dominant, or unspecified.
PFMT habit	Refers to whether a woman performed “satisfied PFMT”, which refers to PFMT at least once a week for 20 min in total in the past 3 months: Yes for performing satisfied PFMT in the past 3 months. No for not performing satisfied PFMT in the past 3 months.
Constipation history	Constipation refers to whether woman often felt defecation difficultly in the past 6 months and is categorized according to the potential impacts on the PFM as: Yes for often constipation in the past 6 months. No for recallable occasional constipation or no recallable constipation.
Smoking history	Refers to whether woman smokes or has ever smoked in her lifetime: Yes for current smoking or ever smoked. No for no smoking in her life.
Number of gestations	Refers to the number of gestation(s) a woman has had, including born, aborted, and in gestation.
Number of abortions	Refers to the number of abortion(s) a woman has had.

PFMT: pelvic floor muscle training.