Procedure and Methods of Data Collection and Processing

2.2.4. Procedure and method of data collection and processing

- Build data collection form based on research objectives and research variables

- Collect available data from medical records and books stored at the general planning department of Hanoi Obstetrics and Gynecology Hospital.

- Enter and process data using SPSS 20.0 and Excel 2010.

- Average values are expressed as Mean ± SD.

- Calculate the ratios.

- Compare the difference between proportions using Chi-square test, Fisher's Exact test.

- Compare the difference between mean values by Student-test with two independent samples with normal distribution.

- p < 0.05 indicates a statistically significant difference.

2.2.5. Research diagram

Create a data collection form

study

CNTC patients were treated with single-dose MTX according to criteria.

selection and exclusion criteria

Note the general, clinical characteristics,

paraclinical and treatment results

Enter information using software

Excel 2010

Goal 1

Data analysis and processing

by SPSS software

Goal 2

2.3. ETHICAL ISSUES IN RESEARCH

- The research topic was approved by the Medical Ethics Council of Hanoi Obstetrics and Gynecology Hospital, the Scientific Council of the University of Medicine and Pharmacy - Vietnam National University, Hanoi and allowed to be conducted at Hanoi Obstetrics and Gynecology Hospital.

- All patients are studied on medical records so there is no direct intervention on the patient.

- Research results are used for the purpose of improving quality.

treatment.

- Patient information is encrypted, kept confidential, and used only for scientific research purposes.

Chapter 3

RESEARCH RESULTS

3.1. GENERAL CHARACTERISTICS OF THE RESEARCH OBJECTS

3.1.1. Patient distribution by age group

Table 3.1. Age distribution of research subjects

Age group

Quantity (n)	Rate (%)
Under 20 years old	2	1.9
20 - 35 years old	90	83.3
Over 35 years old	16	14.8
Total	108	100
Mean ± SD (LN – NN)	29.1 ± 5.5 (19 – 45)

Maybe you are interested!

Comment:

The average age of CNTC is 29.1 ± 5.5. The oldest age is 45 years old, the youngest age is 19 years old. The group over 35 years old accounts for 14.8%. The most common age is in the group from 20 - 35 years old, accounting for 83.3%. The group under 20 years old accounts for the lowest rate of 1.9%.

3.1.2. Geographical distribution of patients

28.7%

71.3%

Countryside

Urban

Figure 3.1. Distribution of patients by geography

Comment:

The subjects in the study mainly came from urban areas, accounting for 71.3%. The rest came from rural areas, accounting for 28.7%.

3.1.3. Distribution of patients by occupation

38.0%

40.7%

13.0%

7.4%

0.9%

Officials and civil servants

Worker

Student

Farmer Housewife, Self-employed

Figure 3.2. Distribution of patients by occupation

Comment:

The occupations of the research subjects were mainly housewives and freelancers, accounting for 40.7%, while civil servants accounted for 38.0%. The groups of workers and students accounted for a lower proportion, 13.0% and 7.4% respectively. There was one case of a farmer, accounting for the lowest proportion of 0.9%.

3.1.4. Obstetric history characteristics

6.5%

26.8%

42.6%

24.1%

0 children

1 child

2 children

≥ 3 children

Chart 3.3. Current number of children

Comment:

Of the total number of patients studied, the group of patients with two children accounted for 26.8%, the group of patients with one child accounted for 24.1%. The cases without children accounted for the highest proportion at 42.6%. The number of patients with three or more children accounted for the lowest proportion at 6.5%.

Table 3.2. History of number of miscarriages (n=108)

Number of miscarriages

0	1	2	3	≥ 4
Quantity (n)	56	30	9	11	2
Rate (%)	51.8	27.8	8.3	10.2	1.9

Comment:

Regarding the number of miscarriages: 27.8% of patients had one miscarriage, 8.3% of patients had two miscarriages, and 10.2% of patients had three miscarriages.

The number of patients with no history of previous miscarriage accounted for the highest rate at 51.8%.

The number of patients with 4 or more miscarriages accounted for the lowest rate, only 2 cases, accounting for 1.9%.

Table 3.3. History of number of cesarean sections (n=108)

Number of cesarean sections

0	1	≥ 2
Quantity (n)	74	21	13
Rate (%)	68.5	19.5	12.0

Comment:

The number of patients with a history of surgery once accounted for 19.5%.

The highest proportion of patients without a history of cesarean section was 68.5%.

The cases of patients with a history of 2 or more cesarean sections accounted for the lowest rate at 12.0%.

3.1.5. Gynecological history characteristics

Table 3.4. Gynecological history (n=108)

Gynecological history

Quantity (n)	Rate (%)
Intrauterine device placement	5	4.6
Genital tract infection	47	43.5
Vacuum aspiration abortion	41	38.0
Ectopic pregnancy	11	10.2
No gynecological history	35	32.4

Comment:

- The number of patients with a history of genital tract inflammation accounted for the highest rate of 43.5%.

- The number of patients with IUDs was the lowest at 4.6%.

- The number of patients with a history of previous ectopic pregnancy was 11, accounting for 10.2%.

- The rate of patients with a history of abortion was 38.0%.

- The number of patients with no gynecological history was 35 people, accounting for 32.4%.

3.2. CLINICAL FEATURES

3.2.1. Functional symptoms

Table 3.5. Functional symptoms (n=108)

Functional symptoms

Quantity (n)	Rate (%)
Late period	74	68.5
Vaginal bleeding	82	75.9
Lower abdominal pain	58	53.7
Late period + bleeding	55	50.9
Late period + abdominal pain	45	41.7
Bleeding + abdominal pain	45	41.7
Late period + abdominal pain + bleeding	34	31.5

Comment:

Among the three symptoms of delayed menstruation, dull lower abdominal pain and vaginal bleeding, the number of patients with bleeding symptoms accounted for the highest percentage of 75.9%, the group with lower abdominal pain symptoms accounted for the lowest percentage of 53.7%.

The group of symptoms of delayed menstruation and bleeding appearing together in one patient accounted for a high rate of 50.9%.

The number of patients with all three symptoms was 34/108 patients, accounting for 31.5%.

3.2.2. Physical symptoms