Table 6. Associated factors of conception among men who received fertility treatment within 1 month after semen analysis (n=86).
Factors Treatment Outcomes Univariable analysis Multivariable analysis
No pregnancy Pregnancy OR (95%CI) p aOR (95%CI) p
Mode of treatment
IUI
IVF and ICSI
43 (93.5)
27 (67.5)
3 (6.5)
13 (32.5)
1
6.90 (1.80-26.47)
0.005*
Infertility causes
Male factor
Female factor
31 (86.1)
39 (78.0)
5 (13.9)
11 (22.0)
1.75 (0.55-5.56) 0.344
Year of research
Group 1
Group 2
43 (81.1)
27 (81.8)
10 (18.9)
6 (18.2)
1
0.96 (0.31-2.93)
0.937
PM2.5 on time (µg/m3)
<50
≥50
52 (82.5)
18 (78.3)
11 (17.5)
5 (21.7)
1.31 (0.40-4.30) 0.652 0.86 (0.23-3.26) 0.820
1-month lag (µg/m3)
<50
≥50
50 (83.3)
20 (76.9)
10 (16.7)
6 (23.1)
1.50 (0.48-4.68) 0.485 1.59 (0.45-5.63) 0.469
2-months lag PM2.5 (µg/m3)
<50
≥50
44 (86.3)
26 (74.3)
7 (13.7)
9 (25.7)
2.18 (0.72-6.54) 0.166 2.83 (0.80-10.04) 0.107
3-months lag PM2.5 (µg/m3)
<50
≥50
47 (83.9)
23 (76.7)
9 (16.1)
7 (23.3)
1.59 (0.53-4.81) 0.412 2.54 (0.69-9.32) 0.159

#Multivariable analysis was adjusted by the mode of treatment and cause of infertility,
aOR; adjusted Odds Ratio
IUI : Intrauterine insemination
IVF: in vitro fertilization
ICSI: intracytoplasmic sperm injection