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Prevalence and Treatment of Anal Incontinence (AI) in Primiparous Women

Prevalence and Treatment of Anal Incontinence in Primiparous Women

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00970320
Enrollment
1718
Registered
2009-09-02
Start date
2009-05-31
Completion date
2014-04-30
Last updated
2016-10-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fecal Incontinence

Keywords

Anal Incontinence, urinary incontinence, primiparas, prevalence, pelvic floor exercise treatment, Quality of Life (QoL)

Brief summary

Traumatic tears of the sphincter ani muscles after delivery may result in symptomatic urinary and anal incontinence, particularly in primiparas. The efficacy of pelvic floor muscle exercise (PFME) in treating urinary incontinence (UI)is well documented, however, to date there is little evidence to support the efficacy of PFME in treating symptomatic anal incontinence. This project consists of three separate studies. The prevalence survey/ study (1), investigates the prevalence of symptomatic anal incontinence among primiparas at Ostfold Hospital Trust Fredrikstad, Norway and St Olav's Hospital, Trondheim University Hospital, Norway, and the results in this study will form the basis of the two identical randomized controlled trials (RCT) investigating the treatment efficacy of PFME two groups of postpartum women. Women reporting symptomatic anal incontinence at six months postpartum (2) and women who have sustained a traumatic 3rd or 4th degree tear of the sphincter ani muscles during delivery (3), respectively, are randomized to an intervention group receiving PFME treatment for six months, or a control group. All RCT participants will undergo examination of PFM strength and activity, as well as anal ultrasound prior to randomization and after the intervention period.

Detailed description

The recruitment in RCT ( 2) has been lower than expected (49/72). Due to financial reasons and problems with logistics and preparations for the main hospital (Ostfold Hospital Trust) moving into a new hospital, we were unable to extend the recruitment period in study 1. In RCT (3) AI was not an inclusion criterion. However, as both RCTs had the same outcome measure; anal incontinence, and a joint randomization process, stratified on hospital site and whether the participants had sustained an obsteric anal sphincter injury at delivery or not, the results from these studies will be reported together.

Interventions

OTHERPelvic floor muscle training

6 months of daily pelvic floor exercise treatment with regular follow up by specialist physiotherapist.

Sponsors

St. Olavs Hospital
CollaboratorOTHER
Norwegian University of Science and Technology
CollaboratorOTHER
Ostfold Hospital Trust
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* primiparas aged 18 years or over with adequate knowledge of the Norwegian Language (prevalence study) * Primiparas (Prevalence study and RCT 2) * Women with obstetric anal sphincter injury with primary repair at delivery (RCT 3)

Exclusion criteria

all studies: * Inadequate knowledge of the Norwegian language * Diabetes mellitus * Irritable bowel syndrome * Neurological diseases such as Multiple Sclerosis * Previous abdominal/colon surgery In RCT studies: Women who have already started pelvic floor muscle training postpartum due to severe anal incontinence or pelvic floor dysfunction

Design outcomes

Primary

MeasureTime frameDescription
Change in Anal Incontinence as Measured on the St. Mark's Score0 to 24 months postpartumSurvey and interview using the questionnaire St. Mark's incontinence score ranging from 0 (no incontinence) -24 (complete incontinence) points for measuring anal incontinence (AI). The A total of 1069 women responded to the questionnaires at 6 months postpartum and 1031 at 12 months postpartum. Discrepancies in the number of included and analysed participants in the PFME trials are related to the number of women who did not attend the follow-up appointments as described in the published paper.

Secondary

MeasureTime frameDescription
Change in Urinary Incontinence as Measured on ICI-Q UI SF0 to 24 months postpartumInternational Consultation of Incontinence Questionnaire, short form (ICI-Q SF) ranges from 0 (Complete continence) to 21 (Complete incontinence) and measures the frequency of UI, amount of leakage and impact on quality of life. Data have not been analysed.
Fecal Incontinence of Life (FIQL) Scale0 to 24 months postpartumChange in health-related quality of Life as measured on the fecal incontinence quality of life scale (FIQL). There is no total scale, only four sub scales ranging from 4 (complete continence, no impact on QoL) to 1 (complete incontinence, severe impact on QoL) Data from the postpartum period has not and will not be analysed due to low numbers.
Change in Pelvic Floor Muscle Function Test as Measured on the ICS Scale12 to 24 months postpartumDigital palpation and grading of voluntary pelvic floor muscle contraction (1=absent, 2=weak, 3=normal, 4=strong).
Change in Manometry Measurements12 to 24 months postpartummanometric measurements of pelvic floor muscle strength and anal sphincter length during voluntary pelvic floor muscle contraction

Countries

Norway

Participant flow

Recruitment details

Primiparas during the period May 2009 and December 2010 and women sustaining obstetric anal sphincter injuries during the period 2009 to 2011 at Ostfold Hospital Trust and St. Olav's Hospital were invited to participate in the prevalence and intervention studies, respectively.

Participants by arm

ArmCount
Control Group, RCT2
Participants reporting anal incontinence 6 months postpartum receiving written information only for 6 months. After 6 months they are offered the same intervention as the intervention group, i.e. PFMT for 6 months.
25
Intervention Group, RCT 2
Participants reporting anal incontinence 6 months postpartum receiving pelvic floor muscle training (PFMT) for 6 months (+6 months). Pelvic floor muscle training: 6 months of daily pelvic floor exercise treatment with regular follow up by specialist physiotherapist.
24
Control Group, RCT3
Women with obsteric anal sphincter injury receiving written information only for 6 months. After 6 months they are offered the same intervention as the intervention group, i.e. PFMT for 6 months.
48
Intervention Group, RCT 3
Women with obsteric anal sphincter injury receiving pelvic floor muscle training (PFMT) for 6 months (+6 months). Pelvic floor muscle training: 6 months of daily pelvic floor exercise treatment with regular follow up by specialist physiotherapist.
50
Prevalence Study
1571 primiparas delivering at Ostfold Hospital Trust or St. Olavs Hospital during the period May 2009 to December 2010.
1,571
Total1,718

Baseline characteristics

CharacteristicIntervention Group, RCT 3Prevalence StudyTotalControl Group, RCT2Intervention Group, RCT 2Control Group, RCT3
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
50 Participants1571 Participants1718 Participants25 Participants24 Participants48 Participants
Age, Continuous30.5 years
STANDARD_DEVIATION 3.7
28.2 years
STANDARD_DEVIATION 4.7
29.3 years
STANDARD_DEVIATION 4.1
29.1 years
STANDARD_DEVIATION 3.9
27.8 years
STANDARD_DEVIATION 4.1
30.8 years
STANDARD_DEVIATION 4
Anal incontinence (AI)4.1 units on a scale
STANDARD_DEVIATION 4.1
6.0 units on a scale
STANDARD_DEVIATION 5
4.5 units on a scale
STANDARD_DEVIATION 3.9
4.3 units on a scale
STANDARD_DEVIATION 4
4.5 units on a scale
STANDARD_DEVIATION 3.2
3.6 units on a scale
STANDARD_DEVIATION 3.3
Region of Enrollment
Norway
50 participants1571 participants1718 participants25 participants24 participants48 participants
Sex: Female, Male
Female
50 Participants1571 Participants1718 Participants25 Participants24 Participants48 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —
other
Total, other adverse events
0 / 250 / 240 / 480 / 500 / 1,571
serious
Total, serious adverse events
0 / 250 / 240 / 480 / 500 / 1,571

Outcome results

Primary

Change in Anal Incontinence as Measured on the St. Mark's Score

Survey and interview using the questionnaire St. Mark's incontinence score ranging from 0 (no incontinence) -24 (complete incontinence) points for measuring anal incontinence (AI). The A total of 1069 women responded to the questionnaires at 6 months postpartum and 1031 at 12 months postpartum. Discrepancies in the number of included and analysed participants in the PFME trials are related to the number of women who did not attend the follow-up appointments as described in the published paper.

Time frame: 0 to 24 months postpartum

ArmMeasureValue (MEAN)Dispersion
Control Group, RCT2Change in Anal Incontinence as Measured on the St. Mark's Score4.3 units on a scaleStandard Deviation 4
Intervention Group, RCT 2Change in Anal Incontinence as Measured on the St. Mark's Score4.5 units on a scaleStandard Deviation 3.2
Control Group, RCT3Change in Anal Incontinence as Measured on the St. Mark's Score3.6 units on a scaleStandard Deviation 3.3
Intervention Group, RCT 3Change in Anal Incontinence as Measured on the St. Mark's Score4.1 units on a scaleStandard Deviation 4.1
Prevalence StudyChange in Anal Incontinence as Measured on the St. Mark's Score6.0 units on a scaleStandard Deviation 5
Secondary

Change in Manometry Measurements

manometric measurements of pelvic floor muscle strength and anal sphincter length during voluntary pelvic floor muscle contraction

Time frame: 12 to 24 months postpartum

Secondary

Change in Pelvic Floor Muscle Function Test as Measured on the ICS Scale

Digital palpation and grading of voluntary pelvic floor muscle contraction (1=absent, 2=weak, 3=normal, 4=strong).

Time frame: 12 to 24 months postpartum

Secondary

Change in Urinary Incontinence as Measured on ICI-Q UI SF

International Consultation of Incontinence Questionnaire, short form (ICI-Q SF) ranges from 0 (Complete continence) to 21 (Complete incontinence) and measures the frequency of UI, amount of leakage and impact on quality of life. Data have not been analysed.

Time frame: 0 to 24 months postpartum

Secondary

Fecal Incontinence of Life (FIQL) Scale

Change in health-related quality of Life as measured on the fecal incontinence quality of life scale (FIQL). There is no total scale, only four sub scales ranging from 4 (complete continence, no impact on QoL) to 1 (complete incontinence, severe impact on QoL) Data from the postpartum period has not and will not be analysed due to low numbers.

Time frame: 0 to 24 months postpartum

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026