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. 2016 Mar 31;11(3):e0152801. doi: 10.1371/journal.pone.0152801

Table 1. Understanding on symptoms of constipation.

which is the most common symptom of constipation
straining 61%
lumpy or hard stools 15%
infrequency of defecation 16%
sensation of incomplete evacuation 4%
sensation of anorectal obstruction/blockage 1%
Time spend at defecation prolonged 3%
which was the Bristol stool form when constipation
type 1 and type 2 34%
anyone among type1 to type3 46%
anyone among type1 to type4 10%
anyone among type1 to type5 4%
anyone among type1 to type6 2%
anyone among type1 to type7 4%
How much force should be increased when straining?
<25% 2%
25% 15%
26%-50% 41%
51–75% 19%
>75% 4%
unclear 19%
How often was the frequency of defecation when infrequency of defecation?
times of defecation decreased compared with previously 16%
less than 5 times per week 2%
less than 3 times per week 67%
less than 2 times per week 15%
unclear 0.00%
How long should be spent when duration of defecation prolonged?
>5min 10%
>10min 27%
>20min 22%
>30min 17%
time of defecation became longer compared to previously bowel habits. 22%
unclear 2%
CSBM was defined as
BM in which no laxative, enema, or suppository was used in the preceding 24 h, without a feeling of complete bowel emptying 94%
BM in which no laxative, enema, or suppository was used in the preceding 24 h, which was associated with a feeling of complete bowel emptying 3%
BM in which no laxative, enema, or suppository was used in the preceding 24 h 3%
unclear 0%
What was the difference between STC and defecation disorders?
infrequency of defecation 6%
amount of stool decreased 3%
lack of defecation sensation 57%
difficult defecation 24%
unclear 10%
What was the difference between IBS-C and FC?
Abdominal discomfort or pain with constipation, pain or discomfort symptoms disappeared after defecation 22%
Abdominal discomfort or pain with constipation, pain or discomfort symptoms relieved after defecation 12%
Abdominal discomfort or pain with constipation, pain or discomfort symptoms relieved or disappeared after defecation 59%
Abdominal discomfort or pain with constipation, pain or discomfort symptoms remained after defecation 3%
unclear 4%