Table 3. Distribution of the prevalence of Blastocystis sp. and Dientamoeba fragilis in immunodeficient (n = 245) and immunocompetent patients (n = 193) by gender, age and season (Statistically significant values have been highlighted in bold).
| Immunodeficient patients n/N (%) | Immunocompetent patients n/N (%) | χ 2 | OR (95% CI) | p valuea | |
|---|---|---|---|---|---|
| Blastocystis sp. | 31/245 (12.7) | 42/193 (21.8) | 6.40 | 1.92 (1.15–3.19) | 0.01 |
| Stratified by gender | |||||
| Male | 12/109 (11.0) | 21/94 (22.3) | 4.78 | 2.33 (1.08–5.03) | 0.03 |
| Female | 19/136 (14.0) | 21/99 (21.2) | 2.10 | 1.66 (0.84–3.28) | 0.15 |
| χ2 = 1.87, SD = 1, p = 0.17 | |||||
| Stratified by age category (years) | |||||
| 18–29 | 5/31 (16.1) | 8/57 (14.0) | 0.07 | 0.85 (0.25–2.86) | 0.79 |
| 30–40 | 4/25 (16.0) | 5/36 (11.1) | 0.05 | 0.85 (0.20–3.23) | 0.82 |
| 41–52 | 6/49 (12.2) | 7/31 (22.6) | 1.45 | 2.09 (0.63–6.94) | 0.23 |
| 53–63 | 8/68 (11.8) | 9/33 (24.2) | 3.61 | 0.36 (0.12–1.03) | 0.06 |
| 64–74 | 5/60 (8.33) | 12/27 (44.4) | 14.43 | 8.80 (2.68–28.91) | <0.001 |
| 75–85 | 3/12 (25.0) | 1/9 (11.1) | 0.68 | 0.38 (0.03–4,37) | 0.41 |
| χ2 = 2.14, SD = 5, p = 0.83 | |||||
| Stratified by seasons category | |||||
| Spring | 16/97 (16.5) | 17/84 (20.2) | 0.42 | 0.78 (0.37–1.66) | 0.52 |
| Summer | 2/47 (4.2) | 5/30 (16.7) | 3.34 | 4.50 (0.81–24.91) | 0.06 |
| Autumn | 4/52 (7.7) | 7/36 (19.4) | 2,64 | 0,35 (0.09–1,28) | 0.10 |
| Winter | 9/49 (18.3) | 13/43 (30.2) | 1.77 | 1.93 (0.73–5.09) | 0.19 |
| χ2 = 1.04, SD = 3, p = 0.79 | |||||
| Dientamoeba fragilis | 26/245 (10.6) | 26/193 (13.5) | 0.84 | 1.31 (0.73–2.34) | 0.36 |
| Stratified by gender | |||||
| Male | 11/109 (10.1) | 11/94 (11.7) | 0.14 | 1.18 (0.49–2.86) | 0.71 |
| Female | 15/136 (11.0) | 15/99 (15.2) | 0.86 | 1.44 (0.67–3.10) | 0.35 |
| χ2 = 0, SD = 1, p = 0.99 | |||||
| Stratified by age category (years) | |||||
| 18–29 | 5/31 (16.1) | 6/57 (10.5) | 0.56 | 0.61 (0.17–2.19) | 0.45 |
| 30–40 | 3/25 (12.0) | 7/36 (19.4) | 0.62 | 1.77 (0.41–7.63) | 0.44 |
| 41–52 | 7/49 (14.3) | 4/31 (12.9) | 0.03 | 0.89 (0.24–3.33) | 0.86 |
| 53–63 | 4/68 (5.9) | 3/33 (9.1) | 0.34 | 1.60 (0.34–7.60) | 0.55 |
| 64–74 | 7/60 (11.7) | 4/27 (14.8) | 0.16 | 1.32 (0.35–4.94) | 0.68 |
| 75–85 | -/12 (-) | 2/9 (22.2) | 3.67 | ||
| χ2 = 5.47, SD = 5, p = 0.36 | |||||
| Stratified by seasons category | |||||
| Spring | 17/97 (17.5) | 10/84 (11.9) | 1.14 | 0.64 (0.27–1.48) | 0.29 |
| Summer | 2/47 (4.3) | 2/30 (6.7) | 0.21 | 1.61 (0.21–12.06) | 0.64 |
| Autumn | 3/52 (5.8) | 6/36 (16.7) | 2.70 | 3.27 (0.76–14.04) | 0.11 |
| Winter | 4/49 (8.2) | 8/43 (18.6) | 2.22 | 2.57 (0.72–9.24) | 0.14 |
| χ2 = 4.15, SD = 3, p = 0.25 | |||||
a Multiple logistic regression analysis