| | SUD treatment cost (₦)# | Socio-demographic factors | Characteristics | Overall mean cost (₦) | SD | t | value | F | value |
| Age (years) | 10–19 | 136,259.7726 | 52,641.5404 | | | 2.375 | 0.041 | 20–29 | 134,984.8038 | 71,264.2967 | 30–39 | 140,309.7241 | 49,444.1646 | 40–49 | 182,122.3636 | 22,918.3269 | 50–59 | 177,770.3333 | 42,352.0020 | 60+ | 263,500.0000 | 00000.0000 |
| Sex | Male | 140,093.4804 | 61,530.0442 | −0.052 | 0.959 | | | Female | 140,661.3684 | 57,090.0664 |
| Marital status | Married | 155,129.1154 | 58,187.5060 | | | 1.833 | 0.142 | Not married | 137,058.3957 | 60,576.5892 | Widowed | 218,580.0000 | 4367.0914 | Divorced/separated | 132,952.0000 | 64,005.7644 |
| Educational level | No formal education | 00000.0000 | 00000.0000 | | | 0.193 | 0.825 | Primary education | 156,809.2000 | 25,763.2442 | Secondary education | 139,449.7062 | 58,883.7906 | Tertiary education | 139,933.5317 | 62,546.5945 |
| Tribe | Igbo | 139,235.5690 | 54,319.6168 | | | 0.565 | 0.639 | Yoruba | 140,279.8133 | 59,407.3928 | Hausa | 104,968.5000 | 107,873.5868 | Others | 146,723.6034 | 70,357.8963 |
| Occupation | Trader | 139,587.2941 | 55,709.3954 | | | 1.507 | 0.167 | Civil servant | 166,425.1818 | 32,267.6258 | Professional | 104,268.0000 | 73,871.0477 | Student | 142,135.8281 | 62,343.9430 | Artisan | 108,581.8333 | 110,340.9393 | Self-employed | 152,713.8077 | 62,557.2211 | Unemployed | 139,859.6306 | 53,630.8131 | Retired | 221,668.0000 | 00000.0000 |
| Setting | Inpatient | 147790.9034 | 54,665.4179 | 5.782 | ≤0.001 | | | Outpatient | 69,521.6842 | 68,289.5547 |
| Patient’s state of residence | Lagos | 130,422.1503 | 57,657.2282 | 4.964 | ≤0.00 | | | Ogun | 182,237.2973 | 55,066.3824 |
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