Retrospective Cohort Study
Copyright ©The Author(s) 2023.
World J Hepatol. Aug 27, 2023; 15(8): 973-984
Published online Aug 27, 2023. doi: 10.4254/wjh.v15.i8.973
Table 1 Analysis of variables with absolute number and relative percentage (%) and Poisson regression with robust simple variance of each variable in relation to steps of cascade of care of patients diagnosed with hepatitis C virus infection at the Hospital Nossa Senhora da Conceição between 2015 and 2020

Total (%)
PCR-HCV collection
P value
Specialized assistance
P value
Treatment
P value
SVR
P value
Total709534 (75.3%)461 (65.0%)344 (48.5%)204 (28.7%)
Gender
Female324 (45.7%)238 (73.5%); 0.95 (0.87-1.04)0.295221 (68.2%); 1.09 (0.98-1.21)0.101175 (54.0%); 1.23 (1.05-1.43)0.007109 (62.3%); 1.10 (0.92-1.32)0.253
Male385 (54.3%)296 (76.9%); 1.0240 (62.3%); 1.0169 (43.9%); 1.095 (56.2%); 1.0
Age (yr)
17-39 118 (16.6%)90 (76.3%); 1.079 (66.9%); 1.00.42052 (44.1%); 1.027 (51.9%); 1.0
40-59348 (49.1%)267 (76.7%); 1.00 (0.89-1.13)0.920225 (64.7%); 0.96 (0.83-1.12)0.646170 (48.9%); 1.10 (0.88-1.39)0.380103 (60.6%); 1.16 (0.87-1.55)0.294
> 60243 (34.3%)177 (72.8%); 0.95 (0.84-1.08)0.479157 (64.6%); 0.96 (0.82-1.12)0.657122 (50.2%); 1.13 (0.89-1.44)0.28474 (60.7%); 1.16 (0.86-1.57)0.307
Race
White543 (76.6%)405 (74.6%); 1.0353 (65.0%); 1.0269 (49.5%); 1.0164 (61.0%); 1.0
Non-white154 (21.7%)118 (76.6 %); 1.02 (0.92-1.13)0.59897 (63.0%); 0.96 (0.84-1.11)0.64965 (42.2%); 0.85 (0.69-1.04)0.12332 (49.2%); 0.80 (0.62-1.05)0.113
Education
Illiterate39 (5.5%)28 (71.8%); 0.88 (0.71-1.08)0.23826 (66.7%); 0.95 (0.74-1.22)0.74120 (51.3%); 0.96 (0.68-1.35)0.83413 (65.0%); 0.95 (0.66-1.36)0.804
Elementary school478 (67.4%)344 (72%); 0.88 (0.80-0.97)0.011301 (63.0%); 0.90 (0.79-1.03)0.134219 (45.8%); 0.86 (0.71-1.03)0.110120 (54.8%); 0.80 (0.66-0.98)0.031
High school and university141 (19.9%)115 (81.6%); 1.098 (69.5%); 1.075 (53.2%); 1.051 (68.0%); 1.0
City of origin
Porto Alegre317 (44.7%)215 (67.8%); 1.0174 (54.9%); 1.0121 (38.2%); 1.049 (40.5%); 1.0
Metropolitan region247 (34.8%)190 (76.9%); 1.13 (1.02-1.25)0.016166 (67.2%); 1.22 (1.07-1.39)0.003126 (51.0%); 1.33 (1.11-1.60)0.00281 (64.3%); 1.58 (1.23-2.04)0
Countryside134 (18.9%)118 (88.1%); 1.29 (1.17-1.43)0112 (83.6%); 1.52 (1.34-1.72)091 (67.9%); 1.77 (1.48-2.13)068 (74.7%); 1.84 (1.44-2.36)0
Follow-up site
HNSC341 (48.1%)320 (93.8%); 1.61 (1.47-1.76)0340 (99.7%); 3.03 (2.62-3.50)0237 (69.5%); 2.39 (2.00-2.84)0166 (70.0%); 1.97 (1.50-2.58)0
External121 (17.1%)214 (58.2%); 1.0121 (32.9%); 1.0107 (29.1%); 1.038 (35.5%); 1.0
Institutionalized
Yes33 (4.7%)25 (75.8%); 1.018 (54.5%); 1.012 (36.4%); 0.74 (0.46-1.17)0.1988 (66.7%); 1.12 (0.74-1.70)
No676 (95.3%)509 (75.3%); 1.00 (0.82-1.22)0.952443 (65.5%); 0.83 (0.60-1.14)0.255332 (49.1%); 1.0196 (59.0%); 1.00.561
Co-infection with HBV
Yes73 (10.3%)61 (83.6%); 1.12 (1.00-1.25)0.04143 (58.9%); 1.030 (41.1%); 0.83 (0.62-1.10)0.20818 (60.0%); 1.01 (0.74-1.37)0.935
No636 (89.7%)473 (74.4%); 1.0418 (65.7%); 0.89 (0.73-1.09)0.282314 (49.4%); 1.0186 (59.2%); 1.00.935
Co-infection with HIV
Yes93 (13.1%)75 (80.6%); 1.08 (0.97-1.20)0.15863 (67.7%); 1.04 (0.90-1.22)0.54135 (37.6%); 0.75 (0.57-0.98)0.03917 (48.6%); 0.80 (0.56-1.14)0.222
No616 (86.9%)459 (74.5%); 1.08398 (64.6%); 1.0309 (50.2%); 1.0187 (60.5%); 1.0
Cirrhosis
Yes126 (17.8%)112 (88.9%); 1.22 (1.13-1.33)0106 (84.1%); 1.38 (1.25-1.52)082 (65.1%); 1.44 (1.23-1.69)060 (73.2%); 1.33 (1.12-1.57)0.001
No583 (82.2%)422 (72.4%); 1.0355 (60.9%); 1.0262 (44.9%); 1.0144 (55.0%); 1.0
Date of diagnosis
2015149 (21.0%)111 (74.5%); 1.0102 (68.5%); 1.076 (51%); 1.042 (55.3%); 1.0
2016136 (19.2%)113 (83.1%); 1.11 (0.98-1.25)0.076101 (74.3%); 1.08 (0.93-1.25)0.27872 (52.9%); 1.03 (0.83-1.29)0.74451 (70.8%); 1.28 (0.99-1.64)0.052
2017121 (17.1%)92 (76.0%); 1.02 (0.89-1.17)0.77184 (69.4%); 1.01 (0.86-1.19)0.86568 (56.2%); 1.10 (0.88-1.37)0.39345 (66.2%); 1.19 (0.91-1.56)0.181
2018121 (17.1%)80 (66.1%); 0.88 (0.75-1.04)0.14072 (59.5%); 0.86 (0.72-1.04)0.13353 (43.8%); 0.85 (0.66-1.10)0.24430 (56.6%); 1.04 (0.75-1.39)0.880
2019128 (18.1%)90 (70.3%); 0.94 (0.81-1.09)0.44067 (52.3%); 0.76 (0.62-0.93)0.00849 (38.3%); 0.75 (0.57-0.98)0.03822 (44.9%); 0.81 (0.56-1.17)0.272
202054 (7.6%)48 (88.9%); 1.19 (1.04-1.36)0.00935 (64.8%); 0.94 (0.75-1.18)0.63426 (48.1%); 0.94 (0.68-1.29)0.72314 (53.8%); 0.97 (0.64-1.46)0.901
Table 2 Poisson regression analysis with multivariable robust variance of significant variables in relation to steps of cascade of care of patients diagnosed with hepatitis C virus infection at the Hospital Nossa Senhora da Conceição between 2015 and 2020

PCR-HCV collection
P value
Specialized assistance
P value
Treatment
P value
SVR
P value
Gender
Female0.06 (0.97-1.16)0.1481.20 (1.03-1.40)0.014
Male1.001.00
Race
White1.01.0
Non-white0.99 (0.81-1.21)0.9310.95 (0.72-1.25)0.734
Education
Illiterate0.83 (0.67-1.03)0.1030.87 (0.73-1.04)0.1520.76 (0.53-1.09)0.1450.63 (0.35-1.12)0.120
Elementary school0.89 (0.81-0.97)0.0140.94 (0.85-1.04)0.2440.85 (0.72-1.02)0.0820.79 (0.65-0.95)0.014
High school and university1.01.01.01.0
City of origin
Porto Alegre1.01.01.01.0
Metropolitan region1.11 (1.00-1.23)0.0331.12 (1.00-1.24)0.0341.19 (0.98-1.45)0.0741.54 (1.19-1.98)0.001
Countryside1.19 (1.08-1.33)0.0011.14 (1.03-1.25)0.0091.38 (1.14-1.68)0.0011.62 (0.24-2.12)0.000
Follow-up site
HNSC1.58 (1.43-1.75)0.0003.00 (2.58-3.50)0.0002.19 (1.80-2.65)0.0001.59 (1.20-2.09)0.001
External1.01.01.01.0
Institutionalized
Yes0.70 (0.42-1.17)0.178
No1.0
Co-infection with HBV
Yes1.11 (0.97-1.27)0.121
No1.0
Co-infection with HIV
Yes1.11 (0.97-1.27)0.1210.80 (0.59-1.08)0.156
No1.01.0
Cirrhosis
Yes1.02 (0.94-1.11)0.5040.96 (0.90-1.03)0.3271.07 (0.91-1.62)0.3631.18 (0.91-1.36)0.275
No1.01.01.01.0
Date of diagnosis
20151.01.01.01.01.000
20161.02 (0.90-1.16)0.6620.90 (0.80-1.01)0.0830.82 (0.65-1.03)0.1021.05 (0.80-1.37)0.701
20170.97 (0.84-1.12)0.7110.93 (0.81-1.06)0.3110.96 (0.76-1.20)0.7301.06 (0.80-1.41)0.652
20180.90 (0.77-1.05)0.2130.92 (0.79-1.07)0.3210.83 (0.64-1.07)0.1530.93 (0.67-1.30)0.685
20191.02 (0.88-1.19)0.7170.88 (0.76-1.03)0.1180.81 (0.62-1.05)0.1250.81 (0.57-1.16)0.267
20201.27 (1.09-1.48)0.0021.03 (0.86-1.25)0.6981.02 (0.75-1.39)0.8790.96 (0.66-1.40)0.862
Table 3 Comparison between patients with hepatitis C virus infection who underwent follow-up at the Hospital Nossa Senhora da Conceição and external ones using Pearson’s chi-square test

HNSC
External
P value
Total340 (73.8%)121 (26.2%)
Gender0.654
Female161 (47.2%)60 (49.6%)
Age (yr)0.854
< 40 60 (17.6%)19 (15.7%)
40-59167 (49.0%)59 (48.8%)
> 60 114 (33.4%)43 (35.5%)
Race0.450
White262 (79.2%)91 (75.8%)
Education0.411
Illiterate22 (7.1%)4 (3.5%)
Elementary school218 (69.9%)83 (73.5%)
High school and university72 (23.1%)26 (23.0%)
City of origin0.006
Porto Alegre121 (36.4%)53 (43.8%)
Metropolitan region116 (34.9%)51 (42.1%)
Countryside95 (28.6%)17 (14.0%)
Cirrhosis0.000
Yes100 (29.3%)7 (5.8%)